Association Rule Mining



A store is always trying to figure out which items do customers by frequently together. That way, they can either put them close together to make it convenient, put the items on opposite ends of the store to make the customers pass by the most amount of merchandise possible, or any other scheme to help raise revenue. Association Rule Mining tries to find those grouped items. It does this through a series of calculating the probabilites of any two items together, and then moving on a group of 3, of 4, of 5, etc., as long as the items in a group - as well as the group itself - all have probability numbers above a preset threshold.

You would commonly analyze the grouping by finding the pairing sets within each grouping number that has the highest confidence, support, and or lift, which are all types of probabilites that give us different insights.

In the analysis below, we will use a preset grocery data given to R.

The following code creates a set of rules based on our given minimum probability values.



data(Groceries)
rules <- apriori(Groceries, parameter = list(supp = .004, conf = .3, minlen=2))
## Apriori
## 
## Parameter specification:
##  confidence minval smax arem  aval originalSupport maxtime support minlen
##         0.3    0.1    1 none FALSE            TRUE       5   0.004      2
##  maxlen target   ext
##      10  rules FALSE
## 
## Algorithmic control:
##  filter tree heap memopt load sort verbose
##     0.1 TRUE TRUE  FALSE TRUE    2    TRUE
## 
## Absolute minimum support count: 39 
## 
## set item appearances ...[0 item(s)] done [0.00s].
## set transactions ...[169 item(s), 9835 transaction(s)] done [0.00s].
## sorting and recoding items ... [126 item(s)] done [0.00s].
## creating transaction tree ... done [0.00s].
## checking subsets of size 1 2 3 4 5 done [0.00s].
## writing ... [735 rule(s)] done [0.00s].
## creating S4 object  ... done [0.00s].



And the output below is a summary of the rules’ attributes. For example, the rule length distribution shows how many sets of items are in each level of groups.



summary(rules)
## set of 735 rules
## 
## rule length distribution (lhs + rhs):sizes
##   2   3   4 
## 121 516  98 
## 
##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##   2.000   3.000   3.000   2.969   3.000   4.000 
## 
## summary of quality measures:
##     support           confidence          lift           count       
##  Min.   :0.004067   Min.   :0.3000   Min.   :1.176   Min.   : 40.00  
##  1st Qu.:0.004677   1st Qu.:0.3534   1st Qu.:1.802   1st Qu.: 46.00  
##  Median :0.005796   Median :0.4211   Median :2.139   Median : 57.00  
##  Mean   :0.008004   Mean   :0.4339   Mean   :2.227   Mean   : 78.72  
##  3rd Qu.:0.008338   3rd Qu.:0.5010   3rd Qu.:2.531   3rd Qu.: 82.00  
##  Max.   :0.074835   Max.   :0.7857   Max.   :5.241   Max.   :736.00  
## 
## mining info:
##       data ntransactions support confidence
##  Groceries          9835   0.004        0.3



And the plot that shows us the relationship between the three aforementioned measuring probabilities.



plot(rules)



And the long list of the item sets, sorted by support. The support is the probabilty that the items on the left are bought together out of all other possible combinations. The confidence tells us the probability of buying the item on the right (RHS) given that we are already buying the items on the left. The lift tells us if we gain any information over what is already supposed



inspect(sort(rules, by="support"))
##       lhs                           rhs                      support confidence     lift count
## [1]   {other vegetables}         => {whole milk}         0.074834774  0.3867578 1.513634   736
## [2]   {rolls/buns}               => {whole milk}         0.056634469  0.3079049 1.205032   557
## [3]   {yogurt}                   => {whole milk}         0.056024403  0.4016035 1.571735   551
## [4]   {root vegetables}          => {whole milk}         0.048906965  0.4486940 1.756031   481
## [5]   {root vegetables}          => {other vegetables}   0.047381800  0.4347015 2.246605   466
## [6]   {yogurt}                   => {other vegetables}   0.043416370  0.3112245 1.608457   427
## [7]   {tropical fruit}           => {whole milk}         0.042297916  0.4031008 1.577595   416
## [8]   {tropical fruit}           => {other vegetables}   0.035892222  0.3420543 1.767790   353
## [9]   {bottled water}            => {whole milk}         0.034367056  0.3109476 1.216940   338
## [10]  {pastry}                   => {whole milk}         0.033248602  0.3737143 1.462587   327
## [11]  {whipped/sour cream}       => {whole milk}         0.032231825  0.4496454 1.759754   317
## [12]  {sausage}                  => {rolls/buns}         0.030604982  0.3257576 1.771048   301
## [13]  {citrus fruit}             => {whole milk}         0.030503305  0.3685504 1.442377   300
## [14]  {pip fruit}                => {whole milk}         0.030096594  0.3978495 1.557043   296
## [15]  {domestic eggs}            => {whole milk}         0.029994916  0.4727564 1.850203   295
## [16]  {sausage}                  => {whole milk}         0.029893238  0.3181818 1.245252   294
## [17]  {whipped/sour cream}       => {other vegetables}   0.028876462  0.4028369 2.081924   284
## [18]  {citrus fruit}             => {other vegetables}   0.028876462  0.3488943 1.803140   284
## [19]  {butter}                   => {whole milk}         0.027554652  0.4972477 1.946053   271
## [20]  {newspapers}               => {whole milk}         0.027351296  0.3426752 1.341110   269
## [21]  {fruit/vegetable juice}    => {whole milk}         0.026639553  0.3684951 1.442160   262
## [22]  {curd}                     => {whole milk}         0.026131164  0.4904580 1.919481   257
## [23]  {pip fruit}                => {other vegetables}   0.026131164  0.3454301 1.785237   257
## [24]  {brown bread}              => {whole milk}         0.025216065  0.3887147 1.521293   248
## [25]  {margarine}                => {whole milk}         0.024199288  0.4131944 1.617098   238
## [26]  {root vegetables,                                                                       
##        other vegetables}         => {whole milk}         0.023182511  0.4892704 1.914833   228
## [27]  {root vegetables,                                                                       
##        whole milk}               => {other vegetables}   0.023182511  0.4740125 2.449770   228
## [28]  {other vegetables,                                                                      
##        whole milk}               => {root vegetables}    0.023182511  0.3097826 2.842082   228
## [29]  {domestic eggs}            => {other vegetables}   0.022267412  0.3509615 1.813824   219
## [30]  {other vegetables,                                                                      
##        yogurt}                   => {whole milk}         0.022267412  0.5128806 2.007235   219
## [31]  {whole milk,                                                                            
##        yogurt}                   => {other vegetables}   0.022267412  0.3974592 2.054131   219
## [32]  {pork}                     => {whole milk}         0.022165735  0.3844797 1.504719   218
## [33]  {pork}                     => {other vegetables}   0.021657346  0.3756614 1.941476   213
## [34]  {beef}                     => {whole milk}         0.021250635  0.4050388 1.585180   209
## [35]  {frankfurter}              => {whole milk}         0.020538892  0.3482759 1.363029   202
## [36]  {frozen vegetables}        => {whole milk}         0.020437214  0.4249471 1.663094   201
## [37]  {butter}                   => {other vegetables}   0.020030503  0.3614679 1.868122   197
## [38]  {beef}                     => {other vegetables}   0.019725470  0.3759690 1.943066   194
## [39]  {napkins}                  => {whole milk}         0.019725470  0.3766990 1.474268   194
## [40]  {margarine}                => {other vegetables}   0.019725470  0.3368056 1.740663   194
## [41]  {frankfurter}              => {rolls/buns}         0.019217082  0.3258621 1.771616   189
## [42]  {coffee}                   => {whole milk}         0.018708693  0.3222417 1.261141   184
## [43]  {chicken}                  => {other vegetables}   0.017895272  0.4170616 2.155439   176
## [44]  {other vegetables,                                                                      
##        rolls/buns}               => {whole milk}         0.017895272  0.4200477 1.643919   176
## [45]  {whole milk,                                                                            
##        rolls/buns}               => {other vegetables}   0.017895272  0.3159785 1.633026   176
## [46]  {frozen vegetables}        => {other vegetables}   0.017793594  0.3699789 1.912108   175
## [47]  {chicken}                  => {whole milk}         0.017590239  0.4099526 1.604411   173
## [48]  {beef}                     => {root vegetables}    0.017386884  0.3313953 3.040367   171
## [49]  {curd}                     => {yogurt}             0.017285206  0.3244275 2.325615   170
## [50]  {curd}                     => {other vegetables}   0.017183528  0.3225191 1.666829   169
## [51]  {white bread}              => {whole milk}         0.017081851  0.4057971 1.588147   168
## [52]  {tropical fruit,                                                                        
##        other vegetables}         => {whole milk}         0.017081851  0.4759207 1.862587   168
## [53]  {tropical fruit,                                                                        
##        whole milk}               => {other vegetables}   0.017081851  0.4038462 2.087140   168
## [54]  {chocolate}                => {whole milk}         0.016675140  0.3360656 1.315243   164
## [55]  {cream cheese }            => {whole milk}         0.016471784  0.4153846 1.625670   162
## [56]  {yogurt,                                                                                
##        rolls/buns}               => {whole milk}         0.015556685  0.4526627 1.771563   153
## [57]  {tropical fruit,                                                                        
##        yogurt}                   => {whole milk}         0.015149975  0.5173611 2.024770   149
## [58]  {tropical fruit,                                                                        
##        whole milk}               => {yogurt}             0.015149975  0.3581731 2.567516   149
## [59]  {sugar}                    => {whole milk}         0.015048297  0.4444444 1.739400   148
## [60]  {hamburger meat}           => {whole milk}         0.014743264  0.4434251 1.735410   145
## [61]  {other vegetables,                                                                      
##        whipped/sour cream}       => {whole milk}         0.014641586  0.5070423 1.984385   144
## [62]  {whole milk,                                                                            
##        whipped/sour cream}       => {other vegetables}   0.014641586  0.4542587 2.347679   144
## [63]  {root vegetables,                                                                       
##        yogurt}                   => {whole milk}         0.014539908  0.5629921 2.203354   143
## [64]  {onions}                   => {other vegetables}   0.014234875  0.4590164 2.372268   140
## [65]  {other vegetables,                                                                      
##        soda}                     => {whole milk}         0.013929842  0.4254658 1.665124   137
## [66]  {whole milk,                                                                            
##        soda}                     => {other vegetables}   0.013929842  0.3477157 1.797049   137
## [67]  {hamburger meat}           => {other vegetables}   0.013828165  0.4159021 2.149447   136
## [68]  {dessert}                  => {whole milk}         0.013726487  0.3698630 1.447514   135
## [69]  {cream cheese }            => {other vegetables}   0.013726487  0.3461538 1.788977   135
## [70]  {white bread}              => {other vegetables}   0.013726487  0.3260870 1.685268   135
## [71]  {long life bakery product} => {whole milk}         0.013523132  0.3614130 1.414444   133
## [72]  {pip fruit,                                                                             
##        other vegetables}         => {whole milk}         0.013523132  0.5175097 2.025351   133
## [73]  {pip fruit,                                                                             
##        whole milk}               => {other vegetables}   0.013523132  0.4493243 2.322178   133
## [74]  {citrus fruit,                                                                          
##        other vegetables}         => {whole milk}         0.013014743  0.4507042 1.763898   128
## [75]  {citrus fruit,                                                                          
##        whole milk}               => {other vegetables}   0.013014743  0.4266667 2.205080   128
## [76]  {root vegetables,                                                                       
##        yogurt}                   => {other vegetables}   0.012913066  0.5000000 2.584078   127
## [77]  {hygiene articles}         => {whole milk}         0.012811388  0.3888889 1.521975   126
## [78]  {waffles}                  => {whole milk}         0.012709710  0.3306878 1.294196   125
## [79]  {root vegetables,                                                                       
##        rolls/buns}               => {whole milk}         0.012709710  0.5230126 2.046888   125
## [80]  {cream cheese }            => {yogurt}             0.012404677  0.3128205 2.242412   122
## [81]  {other vegetables,                                                                      
##        domestic eggs}            => {whole milk}         0.012302999  0.5525114 2.162336   121
## [82]  {whole milk,                                                                            
##        domestic eggs}            => {other vegetables}   0.012302999  0.4101695 2.119820   121
## [83]  {tropical fruit,                                                                        
##        root vegetables}          => {other vegetables}   0.012302999  0.5845411 3.020999   121
## [84]  {tropical fruit,                                                                        
##        other vegetables}         => {root vegetables}    0.012302999  0.3427762 3.144780   121
## [85]  {tropical fruit,                                                                        
##        yogurt}                   => {other vegetables}   0.012302999  0.4201389 2.171343   121
## [86]  {tropical fruit,                                                                        
##        other vegetables}         => {yogurt}             0.012302999  0.3427762 2.457146   121
## [87]  {root vegetables,                                                                       
##        rolls/buns}               => {other vegetables}   0.012201322  0.5020921 2.594890   120
## [88]  {onions}                   => {whole milk}         0.012099644  0.3901639 1.526965   119
## [89]  {tropical fruit,                                                                        
##        root vegetables}          => {whole milk}         0.011997966  0.5700483 2.230969   118
## [90]  {berries}                  => {whole milk}         0.011794611  0.3547401 1.388328   116
## [91]  {butter milk}              => {whole milk}         0.011591256  0.4145455 1.622385   114
## [92]  {dessert}                  => {other vegetables}   0.011591256  0.3123288 1.614164   114
## [93]  {ham}                      => {whole milk}         0.011489578  0.4414062 1.727509   113
## [94]  {other vegetables,                                                                      
##        butter}                   => {whole milk}         0.011489578  0.5736041 2.244885   113
## [95]  {whole milk,                                                                            
##        butter}                   => {other vegetables}   0.011489578  0.4169742 2.154987   113
## [96]  {yogurt,                                                                                
##        rolls/buns}               => {other vegetables}   0.011489578  0.3343195 1.727815   113
## [97]  {oil}                      => {whole milk}         0.011286223  0.4021739 1.573968   111
## [98]  {tropical fruit,                                                                        
##        rolls/buns}               => {whole milk}         0.010981190  0.4462810 1.746587   108
## [99]  {yogurt,                                                                                
##        whipped/sour cream}       => {whole milk}         0.010879512  0.5245098 2.052747   107
## [100] {whole milk,                                                                            
##        whipped/sour cream}       => {yogurt}             0.010879512  0.3375394 2.419607   107
## [101] {sliced cheese}            => {whole milk}         0.010777834  0.4398340 1.721356   106
## [102] {sugar}                    => {other vegetables}   0.010777834  0.3183183 1.645119   106
## [103] {other vegetables,                                                                      
##        bottled water}            => {whole milk}         0.010777834  0.4344262 1.700192   106
## [104] {whole milk,                                                                            
##        bottled water}            => {other vegetables}   0.010777834  0.3136095 1.620783   106
## [105] {berries}                  => {yogurt}             0.010574479  0.3180428 2.279848   104
## [106] {other vegetables,                                                                      
##        pastry}                   => {whole milk}         0.010574479  0.4684685 1.833421   104
## [107] {whole milk,                                                                            
##        pastry}                   => {other vegetables}   0.010574479  0.3180428 1.643695   104
## [108] {other vegetables,                                                                      
##        fruit/vegetable juice}    => {whole milk}         0.010472801  0.4975845 1.947371   103
## [109] {whole milk,                                                                            
##        fruit/vegetable juice}    => {other vegetables}   0.010472801  0.3931298 2.031756   103
## [110] {yogurt,                                                                                
##        soda}                     => {whole milk}         0.010472801  0.3828996 1.498535   103
## [111] {butter milk}              => {other vegetables}   0.010371124  0.3709091 1.916916   102
## [112] {citrus fruit,                                                                          
##        root vegetables}          => {other vegetables}   0.010371124  0.5862069 3.029608   102
## [113] {citrus fruit,                                                                          
##        other vegetables}         => {root vegetables}    0.010371124  0.3591549 3.295045   102
## [114] {berries}                  => {other vegetables}   0.010269446  0.3088685 1.596280   101
## [115] {citrus fruit,                                                                          
##        yogurt}                   => {whole milk}         0.010269446  0.4741784 1.855768   101
## [116] {citrus fruit,                                                                          
##        whole milk}               => {yogurt}             0.010269446  0.3366667 2.413350   101
## [117] {pork,                                                                                  
##        other vegetables}         => {whole milk}         0.010167768  0.4694836 1.837394   100
## [118] {pork,                                                                                  
##        whole milk}               => {other vegetables}   0.010167768  0.4587156 2.370714   100
## [119] {yogurt,                                                                                
##        whipped/sour cream}       => {other vegetables}   0.010167768  0.4901961 2.533410   100
## [120] {other vegetables,                                                                      
##        whipped/sour cream}       => {yogurt}             0.010167768  0.3521127 2.524073   100
## [121] {sausage,                                                                               
##        other vegetables}         => {whole milk}         0.010167768  0.3773585 1.476849   100
## [122] {sausage,                                                                               
##        whole milk}               => {other vegetables}   0.010167768  0.3401361 1.757876   100
## [123] {hard cheese}              => {whole milk}         0.010066090  0.4107884 1.607682    99
## [124] {curd,                                                                                  
##        yogurt}                   => {whole milk}         0.010066090  0.5823529 2.279125    99
## [125] {whole milk,                                                                            
##        curd}                     => {yogurt}             0.010066090  0.3852140 2.761356    99
## [126] {meat}                     => {other vegetables}   0.009964413  0.3858268 1.994013    98
## [127] {meat}                     => {whole milk}         0.009964413  0.3858268 1.509991    98
## [128] {oil}                      => {other vegetables}   0.009964413  0.3550725 1.835070    98
## [129] {frozen meals}             => {whole milk}         0.009862735  0.3476703 1.360659    97
## [130] {other vegetables,                                                                      
##        curd}                     => {whole milk}         0.009862735  0.5739645 2.246296    97
## [131] {whole milk,                                                                            
##        curd}                     => {other vegetables}   0.009862735  0.3774319 1.950627    97
## [132] {other vegetables,                                                                      
##        soda}                     => {rolls/buns}         0.009862735  0.3012422 1.637765    97
## [133] {other vegetables,                                                                      
##        frozen vegetables}        => {whole milk}         0.009659380  0.5428571 2.124552    95
## [134] {whole milk,                                                                            
##        frozen vegetables}        => {other vegetables}   0.009659380  0.4726368 2.442661    95
## [135] {sausage,                                                                               
##        soda}                     => {rolls/buns}         0.009659380  0.3974895 2.161034    95
## [136] {sausage,                                                                               
##        rolls/buns}               => {soda}               0.009659380  0.3156146 1.809953    95
## [137] {yogurt,                                                                                
##        bottled water}            => {whole milk}         0.009659380  0.4203540 1.645118    95
## [138] {pip fruit,                                                                             
##        yogurt}                   => {whole milk}         0.009557702  0.5310734 2.078435    94
## [139] {pip fruit,                                                                             
##        whole milk}               => {yogurt}             0.009557702  0.3175676 2.276441    94
## [140] {hard cheese}              => {other vegetables}   0.009456024  0.3858921 1.994350    93
## [141] {onions}                   => {root vegetables}    0.009456024  0.3049180 2.797452    93
## [142] {yogurt,                                                                                
##        fruit/vegetable juice}    => {whole milk}         0.009456024  0.5054348 1.978094    93
## [143] {whole milk,                                                                            
##        fruit/vegetable juice}    => {yogurt}             0.009456024  0.3549618 2.544497    93
## [144] {root vegetables,                                                                       
##        whipped/sour cream}       => {whole milk}         0.009456024  0.5535714 2.166484    93
## [145] {tropical fruit,                                                                        
##        pip fruit}                => {other vegetables}   0.009456024  0.4626866 2.391236    93
## [146] {pip fruit,                                                                             
##        other vegetables}         => {tropical fruit}     0.009456024  0.3618677 3.448613    93
## [147] {other vegetables,                                                                      
##        brown bread}              => {whole milk}         0.009354347  0.5000000 1.956825    92
## [148] {whole milk,                                                                            
##        brown bread}              => {other vegetables}   0.009354347  0.3709677 1.917219    92
## [149] {butter,                                                                                
##        yogurt}                   => {whole milk}         0.009354347  0.6388889 2.500387    92
## [150] {whole milk,                                                                            
##        butter}                   => {yogurt}             0.009354347  0.3394834 2.433542    92
## [151] {sausage,                                                                               
##        rolls/buns}               => {whole milk}         0.009354347  0.3056478 1.196198    92
## [152] {sausage,                                                                               
##        whole milk}               => {rolls/buns}         0.009354347  0.3129252 1.701282    92
## [153] {baking powder}            => {whole milk}         0.009252669  0.5229885 2.046793    91
## [154] {beef,                                                                                  
##        other vegetables}         => {whole milk}         0.009252669  0.4690722 1.835784    91
## [155] {beef,                                                                                  
##        whole milk}               => {other vegetables}   0.009252669  0.4354067 2.250250    91
## [156] {other vegetables,                                                                      
##        margarine}                => {whole milk}         0.009252669  0.4690722 1.835784    91
## [157] {whole milk,                                                                            
##        margarine}                => {other vegetables}   0.009252669  0.3823529 1.976059    91
## [158] {ham}                      => {other vegetables}   0.009150991  0.3515625 1.816930    90
## [159] {yogurt,                                                                                
##        pastry}                   => {whole milk}         0.009150991  0.5172414 2.024301    90
## [160] {citrus fruit,                                                                          
##        root vegetables}          => {whole milk}         0.009150991  0.5172414 2.024301    90
## [161] {citrus fruit,                                                                          
##        whole milk}               => {root vegetables}    0.009150991  0.3000000 2.752332    90
## [162] {grapes}                   => {other vegetables}   0.009049314  0.4045455 2.090754    89
## [163] {sliced cheese}            => {other vegetables}   0.009049314  0.3692946 1.908572    89
## [164] {citrus fruit,                                                                          
##        tropical fruit}           => {other vegetables}   0.009049314  0.4540816 2.346765    89
## [165] {citrus fruit,                                                                          
##        other vegetables}         => {tropical fruit}     0.009049314  0.3133803 2.986526    89
## [166] {citrus fruit,                                                                          
##        tropical fruit}           => {whole milk}         0.009049314  0.4540816 1.777116    89
## [167] {detergent}                => {whole milk}         0.008947636  0.4656085 1.822228    88
## [168] {pip fruit,                                                                             
##        root vegetables}          => {whole milk}         0.008947636  0.5751634 2.250988    88
## [169] {cat food}                 => {whole milk}         0.008845958  0.3799127 1.486845    87
## [170] {sausage,                                                                               
##        other vegetables}         => {rolls/buns}         0.008845958  0.3283019 1.784881    87
## [171] {sausage,                                                                               
##        yogurt}                   => {whole milk}         0.008744281  0.4455959 1.743906    86
## [172] {rolls/buns,                                                                            
##        bottled water}            => {whole milk}         0.008744281  0.3613445 1.414176    86
## [173] {tropical fruit,                                                                        
##        rolls/buns}               => {yogurt}             0.008744281  0.3553719 2.547436    86
## [174] {yogurt,                                                                                
##        soda}                     => {rolls/buns}         0.008642603  0.3159851 1.717918    85
## [175] {butter milk}              => {yogurt}             0.008540925  0.3054545 2.189610    84
## [176] {root vegetables,                                                                       
##        domestic eggs}            => {whole milk}         0.008540925  0.5957447 2.331536    84
## [177] {root vegetables,                                                                       
##        whipped/sour cream}       => {other vegetables}   0.008540925  0.5000000 2.584078    84
## [178] {rolls/buns,                                                                            
##        pastry}                   => {whole milk}         0.008540925  0.4077670 1.595857    84
## [179] {flour}                    => {whole milk}         0.008439248  0.4853801 1.899607    83
## [180] {chicken,                                                                               
##        other vegetables}         => {whole milk}         0.008439248  0.4715909 1.845641    83
## [181] {chicken,                                                                               
##        whole milk}               => {other vegetables}   0.008439248  0.4797688 2.479520    83
## [182] {tropical fruit,                                                                        
##        pip fruit}                => {whole milk}         0.008439248  0.4129353 1.616084    83
## [183] {other vegetables,                                                                      
##        newspapers}               => {whole milk}         0.008337570  0.4315789 1.689049    82
## [184] {whole milk,                                                                            
##        newspapers}               => {other vegetables}   0.008337570  0.3048327 1.575423    82
## [185] {yogurt,                                                                                
##        soda}                     => {other vegetables}   0.008337570  0.3048327 1.575423    82
## [186] {root vegetables,                                                                       
##        butter}                   => {whole milk}         0.008235892  0.6377953 2.496107    81
## [187] {yogurt,                                                                                
##        fruit/vegetable juice}    => {other vegetables}   0.008235892  0.4402174 2.275112    81
## [188] {other vegetables,                                                                      
##        fruit/vegetable juice}    => {yogurt}             0.008235892  0.3913043 2.805013    81
## [189] {pastry,                                                                                
##        soda}                     => {whole milk}         0.008235892  0.3913043 1.531428    81
## [190] {root vegetables,                                                                       
##        soda}                     => {other vegetables}   0.008235892  0.4426230 2.287544    81
## [191] {pip fruit,                                                                             
##        root vegetables}          => {other vegetables}   0.008134215  0.5228758 2.702304    80
## [192] {pip fruit,                                                                             
##        other vegetables}         => {root vegetables}    0.008134215  0.3112840 2.855857    80
## [193] {pip fruit,                                                                             
##        yogurt}                   => {other vegetables}   0.008134215  0.4519774 2.335890    80
## [194] {pip fruit,                                                                             
##        other vegetables}         => {yogurt}             0.008134215  0.3112840 2.231398    80
## [195] {sausage,                                                                               
##        yogurt}                   => {other vegetables}   0.008134215  0.4145078 2.142241    80
## [196] {sausage,                                                                               
##        other vegetables}         => {yogurt}             0.008134215  0.3018868 2.164035    80
## [197] {yogurt,                                                                                
##        bottled water}            => {other vegetables}   0.008134215  0.3539823 1.829436    80
## [198] {other vegetables,                                                                      
##        bottled water}            => {yogurt}             0.008134215  0.3278689 2.350284    80
## [199] {tropical fruit,                                                                        
##        root vegetables}          => {yogurt}             0.008134215  0.3864734 2.770384    80
## [200] {root vegetables,                                                                       
##        yogurt}                   => {tropical fruit}     0.008134215  0.3149606 3.001587    80
## [201] {root vegetables,                                                                       
##        soda}                     => {whole milk}         0.008134215  0.4371585 1.710885    80
## [202] {sliced cheese}            => {yogurt}             0.008032537  0.3278008 2.349797    79
## [203] {beef,                                                                                  
##        root vegetables}          => {whole milk}         0.008032537  0.4619883 1.808060    79
## [204] {beef,                                                                                  
##        whole milk}               => {root vegetables}    0.008032537  0.3779904 3.467851    79
## [205] {tropical fruit,                                                                        
##        bottled water}            => {whole milk}         0.008032537  0.4340659 1.698782    79
## [206] {beef,                                                                                  
##        root vegetables}          => {other vegetables}   0.007930859  0.4561404 2.357404    78
## [207] {beef,                                                                                  
##        other vegetables}         => {root vegetables}    0.007930859  0.4020619 3.688692    78
## [208] {rolls/buns,                                                                            
##        margarine}                => {whole milk}         0.007930859  0.5379310 2.105273    78
## [209] {whole milk,                                                                            
##        margarine}                => {rolls/buns}         0.007930859  0.3277311 1.781777    78
## [210] {tropical fruit,                                                                        
##        whipped/sour cream}       => {whole milk}         0.007930859  0.5735294 2.244593    78
## [211] {tropical fruit,                                                                        
##        whipped/sour cream}       => {other vegetables}   0.007829181  0.5661765 2.926088    77
## [212] {whipped/sour cream,                                                                    
##        rolls/buns}               => {whole milk}         0.007829181  0.5347222 2.092715    77
## [213] {tropical fruit,                                                                        
##        soda}                     => {whole milk}         0.007829181  0.3756098 1.470005    77
## [214] {tropical fruit,                                                                        
##        rolls/buns}               => {other vegetables}   0.007829181  0.3181818 1.644413    77
## [215] {root vegetables,                                                                       
##        other vegetables,                                                                      
##        yogurt}                   => {whole milk}         0.007829181  0.6062992 2.372842    77
## [216] {root vegetables,                                                                       
##        whole milk,                                                                            
##        yogurt}                   => {other vegetables}   0.007829181  0.5384615 2.782853    77
## [217] {root vegetables,                                                                       
##        other vegetables,                                                                      
##        whole milk}               => {yogurt}             0.007829181  0.3377193 2.420896    77
## [218] {other vegetables,                                                                      
##        whole milk,                                                                            
##        yogurt}                   => {root vegetables}    0.007829181  0.3515982 3.225716    77
## [219] {herbs}                    => {other vegetables}   0.007727504  0.4750000 2.454874    76
## [220] {herbs}                    => {whole milk}         0.007727504  0.4750000 1.858983    76
## [221] {yogurt,                                                                                
##        domestic eggs}            => {whole milk}         0.007727504  0.5390071 2.109485    76
## [222] {sausage,                                                                               
##        root vegetables}          => {whole milk}         0.007727504  0.5170068 2.023383    76
## [223] {sliced cheese}            => {rolls/buns}         0.007625826  0.3112033 1.691921    75
## [224] {frankfurter,                                                                           
##        other vegetables}         => {whole milk}         0.007625826  0.4629630 1.811875    75
## [225] {frankfurter,                                                                           
##        whole milk}               => {other vegetables}   0.007625826  0.3712871 1.918870    75
## [226] {other vegetables,                                                                      
##        bottled beer}             => {whole milk}         0.007625826  0.4716981 1.846061    75
## [227] {whole milk,                                                                            
##        bottled beer}             => {other vegetables}   0.007625826  0.3731343 1.928416    75
## [228] {rolls/buns,                                                                            
##        newspapers}               => {whole milk}         0.007625826  0.3865979 1.513009    75
## [229] {citrus fruit,                                                                          
##        yogurt}                   => {other vegetables}   0.007625826  0.3521127 1.819773    75
## [230] {other vegetables,                                                                      
##        shopping bags}            => {whole milk}         0.007625826  0.3289474 1.287385    75
## [231] {whole milk,                                                                            
##        shopping bags}            => {other vegetables}   0.007625826  0.3112033 1.608347    75
## [232] {tropical fruit,                                                                        
##        other vegetables,                                                                      
##        yogurt}                   => {whole milk}         0.007625826  0.6198347 2.425816    75
## [233] {tropical fruit,                                                                        
##        whole milk,                                                                            
##        yogurt}                   => {other vegetables}   0.007625826  0.5033557 2.601421    75
## [234] {tropical fruit,                                                                        
##        other vegetables,                                                                      
##        whole milk}               => {yogurt}             0.007625826  0.4464286 3.200164    75
## [235] {other vegetables,                                                                      
##        whole milk,                                                                            
##        yogurt}                   => {tropical fruit}     0.007625826  0.3424658 3.263712    75
## [236] {soft cheese}              => {whole milk}         0.007524148  0.4404762 1.723869    74
## [237] {yogurt,                                                                                
##        bottled water}            => {soda}               0.007422471  0.3230088 1.852357    73
## [238] {baking powder}            => {other vegetables}   0.007320793  0.4137931 2.138547    72
## [239] {grapes}                   => {whole milk}         0.007320793  0.3272727 1.280831    72
## [240] {root vegetables,                                                                       
##        domestic eggs}            => {other vegetables}   0.007320793  0.5106383 2.639058    72
## [241] {other vegetables,                                                                      
##        domestic eggs}            => {root vegetables}    0.007320793  0.3287671 3.016254    72
## [242] {root vegetables,                                                                       
##        bottled water}            => {whole milk}         0.007320793  0.4675325 1.829758    72
## [243] {rolls/buns,                                                                            
##        bottled water}            => {other vegetables}   0.007320793  0.3025210 1.563476    72
## [244] {citrus fruit,                                                                          
##        rolls/buns}               => {whole milk}         0.007219115  0.4303030 1.684055    71
## [245] {sausage,                                                                               
##        tropical fruit}           => {whole milk}         0.007219115  0.5182482 2.028241    71
## [246] {tropical fruit,                                                                        
##        soda}                     => {other vegetables}   0.007219115  0.3463415 1.789947    71
## [247] {semi-finished bread}      => {whole milk}         0.007117438  0.4022989 1.574457    70
## [248] {pickled vegetables}       => {whole milk}         0.007117438  0.3977273 1.556565    70
## [249] {soft cheese}              => {other vegetables}   0.007117438  0.4166667 2.153398    70
## [250] {yogurt,                                                                                
##        brown bread}              => {whole milk}         0.007117438  0.4895105 1.915772    70
## [251] {tropical fruit,                                                                        
##        bottled water}            => {yogurt}             0.007117438  0.3846154 2.757064    70
## [252] {yogurt,                                                                                
##        bottled water}            => {tropical fruit}     0.007117438  0.3097345 2.951782    70
## [253] {yogurt,                                                                                
##        bottled water}            => {rolls/buns}         0.007117438  0.3097345 1.683935    70
## [254] {herbs}                    => {root vegetables}    0.007015760  0.4312500 3.956477    69
## [255] {processed cheese}         => {whole milk}         0.007015760  0.4233129 1.656698    69
## [256] {pork,                                                                                  
##        root vegetables}          => {other vegetables}   0.007015760  0.5149254 2.661214    69
## [257] {pork,                                                                                  
##        other vegetables}         => {root vegetables}    0.007015760  0.3239437 2.972002    69
## [258] {yogurt,                                                                                
##        margarine}                => {whole milk}         0.007015760  0.4928571 1.928870    69
## [259] {root vegetables,                                                                       
##        bottled water}            => {other vegetables}   0.007015760  0.4480519 2.315602    69
## [260] {tropical fruit,                                                                        
##        root vegetables,                                                                       
##        other vegetables}         => {whole milk}         0.007015760  0.5702479 2.231750    69
## [261] {tropical fruit,                                                                        
##        root vegetables,                                                                       
##        whole milk}               => {other vegetables}   0.007015760  0.5847458 3.022057    69
## [262] {tropical fruit,                                                                        
##        other vegetables,                                                                      
##        whole milk}               => {root vegetables}    0.007015760  0.4107143 3.768074    69
## [263] {root vegetables,                                                                       
##        other vegetables,                                                                      
##        whole milk}               => {tropical fruit}     0.007015760  0.3026316 2.884091    69
## [264] {pot plants}               => {whole milk}         0.006914082  0.4000000 1.565460    68
## [265] {tropical fruit,                                                                        
##        domestic eggs}            => {whole milk}         0.006914082  0.6071429 2.376144    68
## [266] {beef,                                                                                  
##        rolls/buns}               => {whole milk}         0.006812405  0.5000000 1.956825    67
## [267] {beef,                                                                                  
##        whole milk}               => {rolls/buns}         0.006812405  0.3205742 1.742867    67
## [268] {other vegetables,                                                                      
##        napkins}                  => {whole milk}         0.006812405  0.4718310 1.846581    67
## [269] {whole milk,                                                                            
##        napkins}                  => {other vegetables}   0.006812405  0.3453608 1.784878    67
## [270] {pork,                                                                                  
##        root vegetables}          => {whole milk}         0.006812405  0.5000000 1.956825    67
## [271] {pork,                                                                                  
##        whole milk}               => {root vegetables}    0.006812405  0.3073394 2.819667    67
## [272] {sausage,                                                                               
##        root vegetables}          => {other vegetables}   0.006812405  0.4557823 2.355554    67
## [273] {other vegetables,                                                                      
##        cream cheese }            => {whole milk}         0.006710727  0.4888889 1.913340    66
## [274] {whole milk,                                                                            
##        cream cheese }            => {other vegetables}   0.006710727  0.4074074 2.105545    66
## [275] {butter,                                                                                
##        whipped/sour cream}       => {whole milk}         0.006710727  0.6600000 2.583008    66
## [276] {whipped/sour cream,                                                                    
##        rolls/buns}               => {other vegetables}   0.006710727  0.4583333 2.368738    66
## [277] {tropical fruit,                                                                        
##        pastry}                   => {whole milk}         0.006710727  0.5076923 1.986930    66
## [278] {onions,                                                                                
##        other vegetables}         => {whole milk}         0.006609049  0.4642857 1.817051    65
## [279] {onions,                                                                                
##        whole milk}               => {other vegetables}   0.006609049  0.5462185 2.822942    65
## [280] {yogurt,                                                                                
##        cream cheese }            => {whole milk}         0.006609049  0.5327869 2.085141    65
## [281] {whole milk,                                                                            
##        cream cheese }            => {yogurt}             0.006609049  0.4012346 2.876197    65
## [282] {root vegetables,                                                                       
##        butter}                   => {other vegetables}   0.006609049  0.5118110 2.645119    65
## [283] {other vegetables,                                                                      
##        butter}                   => {root vegetables}    0.006609049  0.3299492 3.027100    65
## [284] {butter,                                                                                
##        rolls/buns}               => {whole milk}         0.006609049  0.4924242 1.927176    65
## [285] {yogurt,                                                                                
##        newspapers}               => {whole milk}         0.006609049  0.4304636 1.684683    65
## [286] {domestic eggs,                                                                         
##        rolls/buns}               => {whole milk}         0.006609049  0.4220779 1.651865    65
## [287] {tropical fruit,                                                                        
##        fruit/vegetable juice}    => {other vegetables}   0.006609049  0.4814815 2.488371    65
## [288] {other vegetables,                                                                      
##        fruit/vegetable juice}    => {tropical fruit}     0.006609049  0.3140097 2.992524    65
## [289] {root vegetables,                                                                       
##        fruit/vegetable juice}    => {other vegetables}   0.006609049  0.5508475 2.846865    65
## [290] {other vegetables,                                                                      
##        fruit/vegetable juice}    => {root vegetables}    0.006609049  0.3140097 2.880863    65
## [291] {yogurt,                                                                                
##        pastry}                   => {other vegetables}   0.006609049  0.3735632 1.930633    65
## [292] {root vegetables,                                                                       
##        shopping bags}            => {other vegetables}   0.006609049  0.5158730 2.666112    65
## [293] {tropical fruit,                                                                        
##        soda}                     => {yogurt}             0.006609049  0.3170732 2.272897    65
## [294] {tropical fruit,                                                                        
##        curd}                     => {whole milk}         0.006507372  0.6336634 2.479936    64
## [295] {root vegetables,                                                                       
##        fruit/vegetable juice}    => {whole milk}         0.006507372  0.5423729 2.122657    64
## [296] {detergent}                => {other vegetables}   0.006405694  0.3333333 1.722719    63
## [297] {pickled vegetables}       => {other vegetables}   0.006405694  0.3579545 1.849965    63
## [298] {other vegetables,                                                                      
##        coffee}                   => {whole milk}         0.006405694  0.4772727 1.867878    63
## [299] {whole milk,                                                                            
##        coffee}                   => {other vegetables}   0.006405694  0.3423913 1.769532    63
## [300] {butter,                                                                                
##        yogurt}                   => {other vegetables}   0.006405694  0.4375000 2.261068    63
## [301] {other vegetables,                                                                      
##        butter}                   => {yogurt}             0.006405694  0.3197970 2.292422    63
## [302] {root vegetables,                                                                       
##        whipped/sour cream}       => {yogurt}             0.006405694  0.3750000 2.688138    63
## [303] {yogurt,                                                                                
##        whipped/sour cream}       => {root vegetables}    0.006405694  0.3088235 2.833283    63
## [304] {tropical fruit,                                                                        
##        pip fruit}                => {yogurt}             0.006405694  0.3134328 2.246802    63
## [305] {pip fruit,                                                                             
##        yogurt}                   => {tropical fruit}     0.006405694  0.3559322 3.392048    63
## [306] {flour}                    => {other vegetables}   0.006304016  0.3625731 1.873834    62
## [307] {hamburger meat,                                                                        
##        other vegetables}         => {whole milk}         0.006304016  0.4558824 1.784164    62
## [308] {hamburger meat,                                                                        
##        whole milk}               => {other vegetables}   0.006304016  0.4275862 2.209832    62
## [309] {other vegetables,                                                                      
##        sugar}                    => {whole milk}         0.006304016  0.5849057 2.289115    62
## [310] {whole milk,                                                                            
##        sugar}                    => {other vegetables}   0.006304016  0.4189189 2.165038    62
## [311] {citrus fruit,                                                                          
##        whipped/sour cream}       => {whole milk}         0.006304016  0.5794393 2.267722    62
## [312] {citrus fruit,                                                                          
##        tropical fruit}           => {yogurt}             0.006304016  0.3163265 2.267545    62
## [313] {rolls/buns,                                                                            
##        shopping bags}            => {soda}               0.006304016  0.3229167 1.851828    62
## [314] {root vegetables,                                                                       
##        frozen vegetables}        => {whole milk}         0.006202339  0.5350877 2.094146    61
## [315] {whole milk,                                                                            
##        frozen vegetables}        => {root vegetables}    0.006202339  0.3034826 2.784283    61
## [316] {root vegetables,                                                                       
##        curd}                     => {whole milk}         0.006202339  0.5700935 2.231146    61
## [317] {pork,                                                                                  
##        rolls/buns}               => {whole milk}         0.006202339  0.5495495 2.150744    61
## [318] {frankfurter,                                                                           
##        yogurt}                   => {whole milk}         0.006202339  0.5545455 2.170296    61
## [319] {frankfurter,                                                                           
##        whole milk}               => {yogurt}             0.006202339  0.3019802 2.164705    61
## [320] {tropical fruit,                                                                        
##        butter}                   => {whole milk}         0.006202339  0.6224490 2.436047    61
## [321] {tropical fruit,                                                                        
##        whipped/sour cream}       => {yogurt}             0.006202339  0.4485294 3.215224    61
## [322] {pip fruit,                                                                             
##        rolls/buns}               => {whole milk}         0.006202339  0.4452555 1.742574    61
## [323] {tropical fruit,                                                                        
##        bottled water}            => {other vegetables}   0.006202339  0.3351648 1.732184    61
## [324] {root vegetables,                                                                       
##        other vegetables,                                                                      
##        rolls/buns}               => {whole milk}         0.006202339  0.5083333 1.989438    61
## [325] {root vegetables,                                                                       
##        whole milk,                                                                            
##        rolls/buns}               => {other vegetables}   0.006202339  0.4880000 2.522060    61
## [326] {other vegetables,                                                                      
##        whole milk,                                                                            
##        rolls/buns}               => {root vegetables}    0.006202339  0.3465909 3.179778    61
## [327] {pasta}                    => {whole milk}         0.006100661  0.4054054 1.586614    60
## [328] {root vegetables,                                                                       
##        frozen vegetables}        => {other vegetables}   0.006100661  0.5263158 2.720082    60
## [329] {other vegetables,                                                                      
##        frozen vegetables}        => {root vegetables}    0.006100661  0.3428571 3.145522    60
## [330] {yogurt,                                                                                
##        frozen vegetables}        => {whole milk}         0.006100661  0.4918033 1.924745    60
## [331] {beef,                                                                                  
##        yogurt}                   => {whole milk}         0.006100661  0.5217391 2.041904    60
## [332] {curd,                                                                                  
##        yogurt}                   => {other vegetables}   0.006100661  0.3529412 1.824055    60
## [333] {other vegetables,                                                                      
##        curd}                     => {yogurt}             0.006100661  0.3550296 2.544982    60
## [334] {yogurt,                                                                                
##        napkins}                  => {whole milk}         0.006100661  0.4958678 1.940652    60
## [335] {whole milk,                                                                            
##        napkins}                  => {yogurt}             0.006100661  0.3092784 2.217021    60
## [336] {bottled water,                                                                         
##        bottled beer}             => {whole milk}         0.006100661  0.3870968 1.514961    60
## [337] {soda,                                                                                  
##        fruit/vegetable juice}    => {whole milk}         0.006100661  0.3314917 1.297342    60
## [338] {dishes}                   => {other vegetables}   0.005998983  0.3410405 1.762550    59
## [339] {soft cheese}              => {yogurt}             0.005998983  0.3511905 2.517462    59
## [340] {chicken,                                                                               
##        root vegetables}          => {whole milk}         0.005998983  0.5514019 2.157993    59
## [341] {chicken,                                                                               
##        whole milk}               => {root vegetables}    0.005998983  0.3410405 3.128855    59
## [342] {frankfurter,                                                                           
##        rolls/buns}               => {whole milk}         0.005998983  0.3121693 1.221721    59
## [343] {butter,                                                                                
##        domestic eggs}            => {whole milk}         0.005998983  0.6210526 2.430582    59
## [344] {root vegetables,                                                                       
##        newspapers}               => {other vegetables}   0.005998983  0.5221239 2.698417    59
## [345] {other vegetables,                                                                      
##        newspapers}               => {root vegetables}    0.005998983  0.3105263 2.848905    59
## [346] {tropical fruit,                                                                        
##        fruit/vegetable juice}    => {whole milk}         0.005998983  0.4370370 1.710410    59
## [347] {pip fruit,                                                                             
##        whipped/sour cream}       => {whole milk}         0.005998983  0.6483516 2.537421    59
## [348] {citrus fruit,                                                                          
##        rolls/buns}               => {other vegetables}   0.005998983  0.3575758 1.848007    59
## [349] {sausage,                                                                               
##        shopping bags}            => {rolls/buns}         0.005998983  0.3831169 2.082894    59
## [350] {rolls/buns,                                                                            
##        shopping bags}            => {sausage}            0.005998983  0.3072917 3.270794    59
## [351] {sausage,                                                                               
##        tropical fruit}           => {other vegetables}   0.005998983  0.4306569 2.225702    59
## [352] {sausage,                                                                               
##        yogurt}                   => {rolls/buns}         0.005998983  0.3056995 1.661998    59
## [353] {other vegetables,                                                                      
##        yogurt,                                                                                
##        rolls/buns}               => {whole milk}         0.005998983  0.5221239 2.043410    59
## [354] {whole milk,                                                                            
##        yogurt,                                                                                
##        rolls/buns}               => {other vegetables}   0.005998983  0.3856209 1.992949    59
## [355] {other vegetables,                                                                      
##        whole milk,                                                                            
##        rolls/buns}               => {yogurt}             0.005998983  0.3352273 2.403032    59
## [356] {other vegetables,                                                                      
##        white bread}              => {whole milk}         0.005897306  0.4296296 1.681420    58
## [357] {whole milk,                                                                            
##        white bread}              => {other vegetables}   0.005897306  0.3452381 1.784244    58
## [358] {curd,                                                                                  
##        whipped/sour cream}       => {whole milk}         0.005897306  0.5631068 2.203802    58
## [359] {curd,                                                                                  
##        rolls/buns}               => {whole milk}         0.005897306  0.5858586 2.292845    58
## [360] {root vegetables,                                                                       
##        margarine}                => {other vegetables}   0.005897306  0.5321101 2.750028    58
## [361] {domestic eggs,                                                                         
##        rolls/buns}               => {other vegetables}   0.005897306  0.3766234 1.946448    58
## [362] {citrus fruit,                                                                          
##        pip fruit}                => {other vegetables}   0.005897306  0.4264706 2.204066    58
## [363] {root vegetables,                                                                       
##        pastry}                   => {other vegetables}   0.005897306  0.5370370 2.775491    58
## [364] {citrus fruit,                                                                          
##        bottled water}            => {whole milk}         0.005897306  0.4360902 1.706704    58
## [365] {beef,                                                                                  
##        rolls/buns}               => {other vegetables}   0.005795628  0.4253731 2.198395    57
## [366] {butter,                                                                                
##        whipped/sour cream}       => {other vegetables}   0.005795628  0.5700000 2.945849    57
## [367] {root vegetables,                                                                       
##        newspapers}               => {whole milk}         0.005795628  0.5044248 1.974142    57
## [368] {yogurt,                                                                                
##        domestic eggs}            => {other vegetables}   0.005795628  0.4042553 2.089254    57
## [369] {bottled water,                                                                         
##        fruit/vegetable juice}    => {whole milk}         0.005795628  0.4071429 1.593414    57
## [370] {yogurt,                                                                                
##        pastry}                   => {rolls/buns}         0.005795628  0.3275862 1.780990    57
## [371] {citrus fruit,                                                                          
##        rolls/buns}               => {yogurt}             0.005795628  0.3454545 2.476345    57
## [372] {citrus fruit,                                                                          
##        root vegetables,                                                                       
##        other vegetables}         => {whole milk}         0.005795628  0.5588235 2.187039    57
## [373] {citrus fruit,                                                                          
##        root vegetables,                                                                       
##        whole milk}               => {other vegetables}   0.005795628  0.6333333 3.273165    57
## [374] {citrus fruit,                                                                          
##        other vegetables,                                                                      
##        whole milk}               => {root vegetables}    0.005795628  0.4453125 4.085493    57
## [375] {root vegetables,                                                                       
##        onions}                   => {other vegetables}   0.005693950  0.6021505 3.112008    56
## [376] {onions,                                                                                
##        other vegetables}         => {root vegetables}    0.005693950  0.4000000 3.669776    56
## [377] {other vegetables,                                                                      
##        long life bakery product} => {whole milk}         0.005693950  0.5333333 2.087279    56
## [378] {whole milk,                                                                            
##        long life bakery product} => {other vegetables}   0.005693950  0.4210526 2.176065    56
## [379] {chicken,                                                                               
##        root vegetables}          => {other vegetables}   0.005693950  0.5233645 2.704829    56
## [380] {chicken,                                                                               
##        other vegetables}         => {root vegetables}    0.005693950  0.3181818 2.919140    56
## [381] {tropical fruit,                                                                        
##        brown bread}              => {whole milk}         0.005693950  0.5333333 2.087279    56
## [382] {root vegetables,                                                                       
##        brown bread}              => {whole milk}         0.005693950  0.5600000 2.191643    56
## [383] {yogurt,                                                                                
##        margarine}                => {other vegetables}   0.005693950  0.4000000 2.067262    56
## [384] {butter,                                                                                
##        rolls/buns}               => {other vegetables}   0.005693950  0.4242424 2.192551    56
## [385] {whipped/sour cream,                                                                    
##        domestic eggs}            => {whole milk}         0.005693950  0.5714286 2.236371    56
## [386] {citrus fruit,                                                                          
##        domestic eggs}            => {whole milk}         0.005693950  0.5490196 2.148670    56
## [387] {citrus fruit,                                                                          
##        whipped/sour cream}       => {other vegetables}   0.005693950  0.5233645 2.704829    56
## [388] {sausage,                                                                               
##        pastry}                   => {whole milk}         0.005693950  0.4552846 1.781824    56
## [389] {root vegetables,                                                                       
##        pastry}                   => {whole milk}         0.005693950  0.5185185 2.029299    56
## [390] {citrus fruit,                                                                          
##        root vegetables}          => {tropical fruit}     0.005693950  0.3218391 3.067139    56
## [391] {sausage,                                                                               
##        shopping bags}            => {soda}               0.005693950  0.3636364 2.085343    56
## [392] {tropical fruit,                                                                        
##        root vegetables,                                                                       
##        yogurt}                   => {whole milk}         0.005693950  0.7000000 2.739554    56
## [393] {tropical fruit,                                                                        
##        root vegetables,                                                                       
##        whole milk}               => {yogurt}             0.005693950  0.4745763 3.401937    56
## [394] {tropical fruit,                                                                        
##        whole milk,                                                                            
##        yogurt}                   => {root vegetables}    0.005693950  0.3758389 3.448112    56
## [395] {root vegetables,                                                                       
##        whole milk,                                                                            
##        yogurt}                   => {tropical fruit}     0.005693950  0.3916084 3.732043    56
## [396] {cake bar}                 => {whole milk}         0.005592272  0.4230769 1.655775    55
## [397] {pork,                                                                                  
##        rolls/buns}               => {other vegetables}   0.005592272  0.4954955 2.560798    55
## [398] {frankfurter,                                                                           
##        other vegetables}         => {rolls/buns}         0.005592272  0.3395062 1.845795    55
## [399] {yogurt,                                                                                
##        newspapers}               => {other vegetables}   0.005592272  0.3642384 1.882441    55
## [400] {rolls/buns,                                                                            
##        fruit/vegetable juice}    => {whole milk}         0.005592272  0.3846154 1.505250    55
## [401] {pip fruit,                                                                             
##        whipped/sour cream}       => {other vegetables}   0.005592272  0.6043956 3.123610    55
## [402] {citrus fruit,                                                                          
##        pip fruit}                => {tropical fruit}     0.005592272  0.4044118 3.854060    55
## [403] {sausage,                                                                               
##        pip fruit}                => {whole milk}         0.005592272  0.5188679 2.030667    55
## [404] {other vegetables,                                                                      
##        yogurt,                                                                                
##        whipped/sour cream}       => {whole milk}         0.005592272  0.5500000 2.152507    55
## [405] {whole milk,                                                                            
##        yogurt,                                                                                
##        whipped/sour cream}       => {other vegetables}   0.005592272  0.5140187 2.656529    55
## [406] {other vegetables,                                                                      
##        whole milk,                                                                            
##        whipped/sour cream}       => {yogurt}             0.005592272  0.3819444 2.737918    55
## [407] {processed cheese}         => {other vegetables}   0.005490595  0.3312883 1.712150    54
## [408] {other vegetables,                                                                      
##        chocolate}                => {whole milk}         0.005490595  0.4320000 1.690696    54
## [409] {whole milk,                                                                            
##        chocolate}                => {other vegetables}   0.005490595  0.3292683 1.701710    54
## [410] {root vegetables,                                                                       
##        curd}                     => {other vegetables}   0.005490595  0.5046729 2.608228    54
## [411] {other vegetables,                                                                      
##        curd}                     => {root vegetables}    0.005490595  0.3195266 2.931478    54
## [412] {tropical fruit,                                                                        
##        butter}                   => {other vegetables}   0.005490595  0.5510204 2.847759    54
## [413] {whipped/sour cream,                                                                    
##        soda}                     => {whole milk}         0.005490595  0.4736842 1.853834    54
## [414] {pip fruit,                                                                             
##        root vegetables,                                                                       
##        other vegetables}         => {whole milk}         0.005490595  0.6750000 2.641713    54
## [415] {pip fruit,                                                                             
##        root vegetables,                                                                       
##        whole milk}               => {other vegetables}   0.005490595  0.6136364 3.171368    54
## [416] {pip fruit,                                                                             
##        other vegetables,                                                                      
##        whole milk}               => {root vegetables}    0.005490595  0.4060150 3.724961    54
## [417] {soft cheese}              => {rolls/buns}         0.005388917  0.3154762 1.715151    53
## [418] {rolls/buns,                                                                            
##        bottled beer}             => {whole milk}         0.005388917  0.3955224 1.547936    53
## [419] {butter,                                                                                
##        bottled water}            => {whole milk}         0.005388917  0.6022727 2.357084    53
## [420] {pip fruit,                                                                             
##        domestic eggs}            => {whole milk}         0.005388917  0.6235294 2.440275    53
## [421] {sausage,                                                                               
##        shopping bags}            => {other vegetables}   0.005388917  0.3441558 1.778651    53
## [422] {yogurt,                                                                                
##        shopping bags}            => {other vegetables}   0.005388917  0.3533333 1.826082    53
## [423] {dishes}                   => {whole milk}         0.005287239  0.3005780 1.176357    52
## [424] {processed cheese}         => {soda}               0.005287239  0.3190184 1.829473    52
## [425] {yogurt,                                                                                
##        cream cheese }            => {other vegetables}   0.005287239  0.4262295 2.202820    52
## [426] {other vegetables,                                                                      
##        cream cheese }            => {yogurt}             0.005287239  0.3851852 2.761149    52
## [427] {chicken,                                                                               
##        rolls/buns}               => {whole milk}         0.005287239  0.5473684 2.142208    52
## [428] {chicken,                                                                               
##        whole milk}               => {rolls/buns}         0.005287239  0.3005780 1.634154    52
## [429] {yogurt,                                                                                
##        frozen vegetables}        => {other vegetables}   0.005287239  0.4262295 2.202820    52
## [430] {tropical fruit,                                                                        
##        curd}                     => {yogurt}             0.005287239  0.5148515 3.690645    52
## [431] {curd,                                                                                  
##        yogurt}                   => {tropical fruit}     0.005287239  0.3058824 2.915071    52
## [432] {tropical fruit,                                                                        
##        curd}                     => {other vegetables}   0.005287239  0.5148515 2.660833    52
## [433] {other vegetables,                                                                      
##        curd}                     => {tropical fruit}     0.005287239  0.3076923 2.932320    52
## [434] {rolls/buns,                                                                            
##        napkins}                  => {whole milk}         0.005287239  0.4521739 1.769650    52
## [435] {rolls/buns,                                                                            
##        brown bread}              => {whole milk}         0.005287239  0.4193548 1.641208    52
## [436] {pip fruit,                                                                             
##        root vegetables}          => {tropical fruit}     0.005287239  0.3398693 3.238967    52
## [437] {pip fruit,                                                                             
##        root vegetables}          => {yogurt}             0.005287239  0.3398693 2.436308    52
## [438] {root vegetables,                                                                       
##        shopping bags}            => {whole milk}         0.005287239  0.4126984 1.615157    52
## [439] {yogurt,                                                                                
##        shopping bags}            => {whole milk}         0.005287239  0.3466667 1.356732    52
## [440] {mustard}                  => {whole milk}         0.005185562  0.4322034 1.691492    51
## [441] {other vegetables,                                                                      
##        hygiene articles}         => {whole milk}         0.005185562  0.5425532 2.123363    51
## [442] {whole milk,                                                                            
##        hygiene articles}         => {other vegetables}   0.005185562  0.4047619 2.091872    51
## [443] {beef,                                                                                  
##        yogurt}                   => {other vegetables}   0.005185562  0.4434783 2.291965    51
## [444] {frankfurter,                                                                           
##        tropical fruit}           => {whole milk}         0.005185562  0.5483871 2.146195    51
## [445] {yogurt,                                                                                
##        bottled beer}             => {whole milk}         0.005185562  0.5604396 2.193364    51
## [446] {yogurt,                                                                                
##        brown bread}              => {other vegetables}   0.005185562  0.3566434 1.843188    51
## [447] {domestic eggs,                                                                         
##        margarine}                => {whole milk}         0.005185562  0.6219512 2.434099    51
## [448] {rolls/buns,                                                                            
##        margarine}                => {other vegetables}   0.005185562  0.3517241 1.817765    51
## [449] {domestic eggs,                                                                         
##        soda}                     => {whole milk}         0.005185562  0.4180328 1.636034    51
## [450] {bottled water,                                                                         
##        fruit/vegetable juice}    => {soda}               0.005185562  0.3642857 2.089067    51
## [451] {citrus fruit,                                                                          
##        pip fruit}                => {whole milk}         0.005185562  0.3750000 1.467618    51
## [452] {sausage,                                                                               
##        root vegetables}          => {yogurt}             0.005185562  0.3469388 2.486985    51
## [453] {root vegetables,                                                                       
##        other vegetables,                                                                      
##        whipped/sour cream}       => {whole milk}         0.005185562  0.6071429 2.376144    51
## [454] {root vegetables,                                                                       
##        whole milk,                                                                            
##        whipped/sour cream}       => {other vegetables}   0.005185562  0.5483871 2.834150    51
## [455] {other vegetables,                                                                      
##        whole milk,                                                                            
##        whipped/sour cream}       => {root vegetables}    0.005185562  0.3541667 3.249281    51
## [456] {canned fish}              => {other vegetables}   0.005083884  0.3378378 1.745998    50
## [457] {other vegetables,                                                                      
##        oil}                      => {whole milk}         0.005083884  0.5102041 1.996760    50
## [458] {whole milk,                                                                            
##        oil}                      => {other vegetables}   0.005083884  0.4504505 2.327998    50
## [459] {soda,                                                                                  
##        chocolate}                => {whole milk}         0.005083884  0.3759398 1.471297    50
## [460] {whole milk,                                                                            
##        chocolate}                => {soda}               0.005083884  0.3048780 1.748382    50
## [461] {yogurt,                                                                                
##        coffee}                   => {whole milk}         0.005083884  0.5208333 2.038359    50
## [462] {frozen vegetables,                                                                     
##        rolls/buns}               => {whole milk}         0.005083884  0.5000000 1.956825    50
## [463] {frankfurter,                                                                           
##        root vegetables}          => {whole milk}         0.005083884  0.5000000 1.956825    50
## [464] {bottled water,                                                                         
##        bottled beer}             => {soda}               0.005083884  0.3225806 1.849901    50
## [465] {brown bread,                                                                           
##        soda}                     => {whole milk}         0.005083884  0.4032258 1.578084    50
## [466] {citrus fruit,                                                                          
##        butter}                   => {whole milk}         0.005083884  0.5555556 2.174249    50
## [467] {tropical fruit,                                                                        
##        newspapers}               => {whole milk}         0.005083884  0.4310345 1.686918    50
## [468] {yogurt,                                                                                
##        newspapers}               => {rolls/buns}         0.005083884  0.3311258 1.800234    50
## [469] {whipped/sour cream,                                                                    
##        domestic eggs}            => {other vegetables}   0.005083884  0.5102041 2.636814    50
## [470] {domestic eggs,                                                                         
##        soda}                     => {other vegetables}   0.005083884  0.4098361 2.118097    50
## [471] {sausage,                                                                               
##        whipped/sour cream}       => {whole milk}         0.005083884  0.5617978 2.198679    50
## [472] {pip fruit,                                                                             
##        pastry}                   => {whole milk}         0.005083884  0.4761905 1.863642    50
## [473] {pip fruit,                                                                             
##        rolls/buns}               => {other vegetables}   0.005083884  0.3649635 1.886188    50
## [474] {tropical fruit,                                                                        
##        pastry}                   => {other vegetables}   0.005083884  0.3846154 1.987752    50
## [475] {citrus fruit,                                                                          
##        bottled water}            => {other vegetables}   0.005083884  0.3759398 1.942916    50
## [476] {sausage,                                                                               
##        bottled water}            => {other vegetables}   0.005083884  0.4237288 2.189896    50
## [477] {other vegetables,                                                                      
##        yogurt,                                                                                
##        fruit/vegetable juice}    => {whole milk}         0.005083884  0.6172840 2.415833    50
## [478] {whole milk,                                                                            
##        yogurt,                                                                                
##        fruit/vegetable juice}    => {other vegetables}   0.005083884  0.5376344 2.778578    50
## [479] {other vegetables,                                                                      
##        whole milk,                                                                            
##        fruit/vegetable juice}    => {yogurt}             0.005083884  0.4854369 3.479790    50
## [480] {pip fruit,                                                                             
##        other vegetables,                                                                      
##        yogurt}                   => {whole milk}         0.005083884  0.6250000 2.446031    50
## [481] {pip fruit,                                                                             
##        whole milk,                                                                            
##        yogurt}                   => {other vegetables}   0.005083884  0.5319149 2.749019    50
## [482] {pip fruit,                                                                             
##        other vegetables,                                                                      
##        whole milk}               => {yogurt}             0.005083884  0.3759398 2.694875    50
## [483] {frozen fish}              => {whole milk}         0.004982206  0.4260870 1.667555    49
## [484] {berries,                                                                               
##        other vegetables}         => {whole milk}         0.004982206  0.4851485 1.898701    49
## [485] {berries,                                                                               
##        whole milk}               => {other vegetables}   0.004982206  0.4224138 2.183100    49
## [486] {other vegetables,                                                                      
##        dessert}                  => {whole milk}         0.004982206  0.4298246 1.682182    49
## [487] {whole milk,                                                                            
##        dessert}                  => {other vegetables}   0.004982206  0.3629630 1.875849    49
## [488] {chicken,                                                                               
##        rolls/buns}               => {other vegetables}   0.004982206  0.5157895 2.665680    49
## [489] {rolls/buns,                                                                            
##        chocolate}                => {whole milk}         0.004982206  0.4224138 1.653179    49
## [490] {tropical fruit,                                                                        
##        frozen vegetables}        => {whole milk}         0.004982206  0.5697674 2.229870    49
## [491] {beef,                                                                                  
##        rolls/buns}               => {root vegetables}    0.004982206  0.3656716 3.354833    49
## [492] {tropical fruit,                                                                        
##        napkins}                  => {whole milk}         0.004982206  0.4949495 1.937059    49
## [493] {margarine,                                                                             
##        bottled water}            => {whole milk}         0.004982206  0.4851485 1.898701    49
## [494] {root vegetables,                                                                       
##        margarine}                => {whole milk}         0.004982206  0.4495413 1.759347    49
## [495] {soda,                                                                                  
##        newspapers}               => {other vegetables}   0.004982206  0.3402778 1.758608    49
## [496] {pip fruit,                                                                             
##        soda}                     => {whole milk}         0.004982206  0.3740458 1.463884    49
## [497] {sausage,                                                                               
##        citrus fruit}             => {whole milk}         0.004982206  0.4414414 1.727647    49
## [498] {tropical fruit,                                                                        
##        shopping bags}            => {whole milk}         0.004982206  0.3684211 1.441871    49
## [499] {sausage,                                                                               
##        root vegetables}          => {rolls/buns}         0.004982206  0.3333333 1.812235    49
## [500] {citrus fruit,                                                                          
##        tropical fruit,                                                                        
##        other vegetables}         => {whole milk}         0.004982206  0.5505618 2.154706    49
## [501] {citrus fruit,                                                                          
##        tropical fruit,                                                                        
##        whole milk}               => {other vegetables}   0.004982206  0.5505618 2.845389    49
## [502] {citrus fruit,                                                                          
##        other vegetables,                                                                      
##        whole milk}               => {tropical fruit}     0.004982206  0.3828125 3.648218    49
## [503] {tropical fruit,                                                                        
##        root vegetables,                                                                       
##        yogurt}                   => {other vegetables}   0.004982206  0.6125000 3.165495    49
## [504] {tropical fruit,                                                                        
##        root vegetables,                                                                       
##        other vegetables}         => {yogurt}             0.004982206  0.4049587 2.902893    49
## [505] {tropical fruit,                                                                        
##        other vegetables,                                                                      
##        yogurt}                   => {root vegetables}    0.004982206  0.4049587 3.715269    49
## [506] {root vegetables,                                                                       
##        other vegetables,                                                                      
##        yogurt}                   => {tropical fruit}     0.004982206  0.3858268 3.676944    49
## [507] {other vegetables,                                                                      
##        salty snack}              => {whole milk}         0.004880529  0.4528302 1.772218    48
## [508] {whole milk,                                                                            
##        salty snack}              => {other vegetables}   0.004880529  0.4363636 2.255195    48
## [509] {chicken,                                                                               
##        yogurt}                   => {other vegetables}   0.004880529  0.5853659 3.025262    48
## [510] {yogurt,                                                                                
##        white bread}              => {whole milk}         0.004880529  0.5393258 2.110732    48
## [511] {butter,                                                                                
##        curd}                     => {whole milk}         0.004880529  0.7164179 2.803808    48
## [512] {pip fruit,                                                                             
##        curd}                     => {whole milk}         0.004880529  0.6233766 2.439677    48
## [513] {root vegetables,                                                                       
##        napkins}                  => {whole milk}         0.004880529  0.4897959 1.916889    48
## [514] {pork,                                                                                  
##        yogurt}                   => {whole milk}         0.004880529  0.5106383 1.998459    48
## [515] {frankfurter,                                                                           
##        yogurt}                   => {other vegetables}   0.004880529  0.4363636 2.255195    48
## [516] {domestic eggs,                                                                         
##        bottled water}            => {whole milk}         0.004880529  0.5333333 2.087279    48
## [517] {sausage,                                                                               
##        fruit/vegetable juice}    => {whole milk}         0.004880529  0.4848485 1.897527    48
## [518] {tropical fruit,                                                                        
##        fruit/vegetable juice}    => {yogurt}             0.004880529  0.3555556 2.548753    48
## [519] {sausage,                                                                               
##        whipped/sour cream}       => {other vegetables}   0.004880529  0.5393258 2.787320    48
## [520] {whipped/sour cream,                                                                    
##        soda}                     => {other vegetables}   0.004880529  0.4210526 2.176065    48
## [521] {citrus fruit,                                                                          
##        pastry}                   => {whole milk}         0.004880529  0.5000000 1.956825    48
## [522] {tropical fruit,                                                                        
##        yogurt,                                                                                
##        rolls/buns}               => {whole milk}         0.004880529  0.5581395 2.184362    48
## [523] {tropical fruit,                                                                        
##        whole milk,                                                                            
##        yogurt}                   => {rolls/buns}         0.004880529  0.3221477 1.751422    48
## [524] {tropical fruit,                                                                        
##        whole milk,                                                                            
##        rolls/buns}               => {yogurt}             0.004880529  0.4444444 3.185941    48
## [525] {whole milk,                                                                            
##        yogurt,                                                                                
##        rolls/buns}               => {tropical fruit}     0.004880529  0.3137255 2.989816    48
## [526] {roll products }           => {other vegetables}   0.004778851  0.4653465 2.404983    47
## [527] {canned fish}              => {whole milk}         0.004778851  0.3175676 1.242848    47
## [528] {ham,                                                                                   
##        other vegetables}         => {whole milk}         0.004778851  0.5222222 2.043794    47
## [529] {ham,                                                                                   
##        whole milk}               => {other vegetables}   0.004778851  0.4159292 2.149587    47
## [530] {root vegetables,                                                                       
##        onions}                   => {whole milk}         0.004778851  0.5053763 1.977866    47
## [531] {onions,                                                                                
##        whole milk}               => {root vegetables}    0.004778851  0.3949580 3.623518    47
## [532] {dessert,                                                                               
##        yogurt}                   => {whole milk}         0.004778851  0.4845361 1.896304    47
## [533] {whole milk,                                                                            
##        dessert}                  => {yogurt}             0.004778851  0.3481481 2.495654    47
## [534] {curd,                                                                                  
##        domestic eggs}            => {whole milk}         0.004778851  0.7343750 2.874086    47
## [535] {brown bread,                                                                           
##        pastry}                   => {whole milk}         0.004778851  0.4947368 1.936226    47
## [536] {sausage,                                                                               
##        butter}                   => {whole milk}         0.004778851  0.5529412 2.164018    47
## [537] {soda,                                                                                  
##        newspapers}               => {whole milk}         0.004778851  0.3263889 1.277372    47
## [538] {domestic eggs,                                                                         
##        fruit/vegetable juice}    => {whole milk}         0.004778851  0.5949367 2.328373    47
## [539] {tropical fruit,                                                                        
##        domestic eggs}            => {other vegetables}   0.004778851  0.4196429 2.168780    47
## [540] {pip fruit,                                                                             
##        fruit/vegetable juice}    => {whole milk}         0.004778851  0.5000000 1.956825    47
## [541] {citrus fruit,                                                                          
##        fruit/vegetable juice}    => {other vegetables}   0.004778851  0.4607843 2.381405    47
## [542] {whipped/sour cream,                                                                    
##        rolls/buns}               => {yogurt}             0.004778851  0.3263889 2.339675    47
## [543] {tropical fruit,                                                                        
##        shopping bags}            => {other vegetables}   0.004778851  0.3533835 1.826341    47
## [544] {tropical fruit,                                                                        
##        pip fruit,                                                                             
##        other vegetables}         => {whole milk}         0.004778851  0.5053763 1.977866    47
## [545] {tropical fruit,                                                                        
##        pip fruit,                                                                             
##        whole milk}               => {other vegetables}   0.004778851  0.5662651 2.926546    47
## [546] {pip fruit,                                                                             
##        other vegetables,                                                                      
##        whole milk}               => {tropical fruit}     0.004778851  0.3533835 3.367758    47
## [547] {citrus fruit,                                                                          
##        other vegetables,                                                                      
##        yogurt}                   => {whole milk}         0.004778851  0.6266667 2.452553    47
## [548] {citrus fruit,                                                                          
##        whole milk,                                                                            
##        yogurt}                   => {other vegetables}   0.004778851  0.4653465 2.404983    47
## [549] {citrus fruit,                                                                          
##        other vegetables,                                                                      
##        whole milk}               => {yogurt}             0.004778851  0.3671875 2.632135    47
## [550] {liquor}                   => {bottled beer}       0.004677173  0.4220183 5.240594    46
## [551] {rice}                     => {whole milk}         0.004677173  0.6133333 2.400371    46
## [552] {canned vegetables}        => {other vegetables}   0.004677173  0.4339623 2.242784    46
## [553] {roll products }           => {whole milk}         0.004677173  0.4554455 1.782454    46
## [554] {frozen fish}              => {other vegetables}   0.004677173  0.4000000 2.067262    46
## [555] {other vegetables,                                                                      
##        butter milk}              => {whole milk}         0.004677173  0.4509804 1.764979    46
## [556] {whole milk,                                                                            
##        butter milk}              => {other vegetables}   0.004677173  0.4035088 2.085396    46
## [557] {hamburger meat,                                                                        
##        rolls/buns}               => {other vegetables}   0.004677173  0.5411765 2.796884    46
## [558] {hamburger meat,                                                                        
##        other vegetables}         => {rolls/buns}         0.004677173  0.3382353 1.838886    46
## [559] {rolls/buns,                                                                            
##        waffles}                  => {whole milk}         0.004677173  0.5111111 2.000310    46
## [560] {whole milk,                                                                            
##        waffles}                  => {rolls/buns}         0.004677173  0.3680000 2.000708    46
## [561] {other vegetables,                                                                      
##        waffles}                  => {whole milk}         0.004677173  0.4646465 1.818463    46
## [562] {whole milk,                                                                            
##        waffles}                  => {other vegetables}   0.004677173  0.3680000 1.901881    46
## [563] {rolls/buns,                                                                            
##        coffee}                   => {whole milk}         0.004677173  0.4259259 1.666925    46
## [564] {root vegetables,                                                                       
##        curd}                     => {yogurt}             0.004677173  0.4299065 3.081728    46
## [565] {soda,                                                                                  
##        napkins}                  => {whole milk}         0.004677173  0.3898305 1.525660    46
## [566] {pork,                                                                                  
##        yogurt}                   => {other vegetables}   0.004677173  0.4893617 2.529097    46
## [567] {pip fruit,                                                                             
##        pastry}                   => {other vegetables}   0.004677173  0.4380952 2.264144    46
## [568] {pip fruit,                                                                             
##        soda}                     => {other vegetables}   0.004677173  0.3511450 1.814772    46
## [569] {tropical fruit,                                                                        
##        pastry}                   => {yogurt}             0.004677173  0.3538462 2.536499    46
## [570] {sausage,                                                                               
##        tropical fruit}           => {yogurt}             0.004677173  0.3357664 2.406897    46
## [571] {root vegetables,                                                                       
##        yogurt,                                                                                
##        rolls/buns}               => {whole milk}         0.004677173  0.6478873 2.535604    46
## [572] {root vegetables,                                                                       
##        whole milk,                                                                            
##        yogurt}                   => {rolls/buns}         0.004677173  0.3216783 1.748870    46
## [573] {root vegetables,                                                                       
##        whole milk,                                                                            
##        rolls/buns}               => {yogurt}             0.004677173  0.3680000 2.637959    46
## [574] {whole milk,                                                                            
##        yogurt,                                                                                
##        rolls/buns}               => {root vegetables}    0.004677173  0.3006536 2.758328    46
## [575] {butter milk,                                                                           
##        yogurt}                   => {whole milk}         0.004575496  0.5357143 2.096598    45
## [576] {whole milk,                                                                            
##        butter milk}              => {yogurt}             0.004575496  0.3947368 2.829619    45
## [577] {yogurt,                                                                                
##        sliced cheese}            => {whole milk}         0.004575496  0.5696203 2.229294    45
## [578] {whole milk,                                                                            
##        sliced cheese}            => {yogurt}             0.004575496  0.4245283 3.043175    45
## [579] {other vegetables,                                                                      
##        sliced cheese}            => {whole milk}         0.004575496  0.5056180 1.978811    45
## [580] {whole milk,                                                                            
##        sliced cheese}            => {other vegetables}   0.004575496  0.4245283 2.194028    45
## [581] {yogurt,                                                                                
##        long life bakery product} => {whole milk}         0.004575496  0.5232558 2.047840    45
## [582] {whole milk,                                                                            
##        long life bakery product} => {yogurt}             0.004575496  0.3383459 2.425387    45
## [583] {dessert,                                                                               
##        yogurt}                   => {other vegetables}   0.004575496  0.4639175 2.397598    45
## [584] {other vegetables,                                                                      
##        dessert}                  => {yogurt}             0.004575496  0.3947368 2.829619    45
## [585] {tropical fruit,                                                                        
##        white bread}              => {whole milk}         0.004575496  0.5232558 2.047840    45
## [586] {yogurt,                                                                                
##        chocolate}                => {whole milk}         0.004575496  0.4945055 1.935321    45
## [587] {beef,                                                                                  
##        tropical fruit}           => {whole milk}         0.004575496  0.6000000 2.348189    45
## [588] {beef,                                                                                  
##        yogurt}                   => {root vegetables}    0.004575496  0.3913043 3.589998    45
## [589] {curd,                                                                                  
##        whipped/sour cream}       => {yogurt}             0.004575496  0.4368932 3.131811    45
## [590] {root vegetables,                                                                       
##        napkins}                  => {other vegetables}   0.004575496  0.4591837 2.373133    45
## [591] {other vegetables,                                                                      
##        napkins}                  => {root vegetables}    0.004575496  0.3169014 2.907393    45
## [592] {pork,                                                                                  
##        whipped/sour cream}       => {whole milk}         0.004575496  0.5555556 2.174249    45
## [593] {yogurt,                                                                                
##        margarine}                => {rolls/buns}         0.004575496  0.3214286 1.747512    45
## [594] {rolls/buns,                                                                            
##        margarine}                => {yogurt}             0.004575496  0.3103448 2.224666    45
## [595] {butter,                                                                                
##        domestic eggs}            => {other vegetables}   0.004575496  0.4736842 2.448074    45
## [596] {citrus fruit,                                                                          
##        butter}                   => {other vegetables}   0.004575496  0.5000000 2.584078    45
## [597] {tropical fruit,                                                                        
##        butter}                   => {yogurt}             0.004575496  0.4591837 3.291597    45
## [598] {butter,                                                                                
##        yogurt}                   => {tropical fruit}     0.004575496  0.3125000 2.978137    45
## [599] {citrus fruit,                                                                          
##        whipped/sour cream}       => {yogurt}             0.004575496  0.4205607 3.014734    45
## [600] {tropical fruit,                                                                        
##        whipped/sour cream}       => {root vegetables}    0.004575496  0.3308824 3.035660    45
## [601] {pip fruit,                                                                             
##        bottled water}            => {whole milk}         0.004575496  0.4326923 1.693406    45
## [602] {pastry,                                                                                
##        shopping bags}            => {whole milk}         0.004575496  0.3846154 1.505250    45
## [603] {root vegetables,                                                                       
##        other vegetables,                                                                      
##        domestic eggs}            => {whole milk}         0.004575496  0.6250000 2.446031    45
## [604] {root vegetables,                                                                       
##        whole milk,                                                                            
##        domestic eggs}            => {other vegetables}   0.004575496  0.5357143 2.768655    45
## [605] {other vegetables,                                                                      
##        whole milk,                                                                            
##        domestic eggs}            => {root vegetables}    0.004575496  0.3719008 3.411982    45
## [606] {cake bar}                 => {soda}               0.004473818  0.3384615 1.940973    44
## [607] {root vegetables,                                                                       
##        oil}                      => {whole milk}         0.004473818  0.6376812 2.495660    44
## [608] {whole milk,                                                                            
##        oil}                      => {root vegetables}    0.004473818  0.3963964 3.636715    44
## [609] {root vegetables,                                                                       
##        cream cheese }            => {other vegetables}   0.004473818  0.5945946 3.072957    44
## [610] {other vegetables,                                                                      
##        cream cheese }            => {root vegetables}    0.004473818  0.3259259 2.990188    44
## [611] {beef,                                                                                  
##        tropical fruit}           => {other vegetables}   0.004473818  0.5866667 3.031985    44
## [612] {curd,                                                                                  
##        pastry}                   => {whole milk}         0.004473818  0.5945946 2.327035    44
## [613] {sausage,                                                                               
##        brown bread}              => {other vegetables}   0.004473818  0.4190476 2.165703    44
## [614] {sausage,                                                                               
##        brown bread}              => {whole milk}         0.004473818  0.4190476 1.640005    44
## [615] {tropical fruit,                                                                        
##        margarine}                => {whole milk}         0.004473818  0.4782609 1.871745    44
## [616] {pip fruit,                                                                             
##        butter}                   => {whole milk}         0.004473818  0.6111111 2.391674    44
## [617] {butter,                                                                                
##        yogurt}                   => {rolls/buns}         0.004473818  0.3055556 1.661216    44
## [618] {butter,                                                                                
##        rolls/buns}               => {yogurt}             0.004473818  0.3333333 2.389456    44
## [619] {citrus fruit,                                                                          
##        domestic eggs}            => {other vegetables}   0.004473818  0.4313725 2.229400    44
## [620] {sausage,                                                                               
##        domestic eggs}            => {whole milk}         0.004473818  0.4680851 1.831921    44
## [621] {whipped/sour cream,                                                                    
##        fruit/vegetable juice}    => {whole milk}         0.004473818  0.4943820 1.934838    44
## [622] {pip fruit,                                                                             
##        rolls/buns}               => {tropical fruit}     0.004473818  0.3211679 3.060742    44
## [623] {sausage,                                                                               
##        citrus fruit}             => {other vegetables}   0.004473818  0.3963964 2.048638    44
## [624] {citrus fruit,                                                                          
##        soda}                     => {whole milk}         0.004473818  0.3492063 1.366671    44
## [625] {tropical fruit,                                                                        
##        other vegetables,                                                                      
##        whipped/sour cream}       => {whole milk}         0.004473818  0.5714286 2.236371    44
## [626] {tropical fruit,                                                                        
##        whole milk,                                                                            
##        whipped/sour cream}       => {other vegetables}   0.004473818  0.5641026 2.915370    44
## [627] {other vegetables,                                                                      
##        whole milk,                                                                            
##        whipped/sour cream}       => {tropical fruit}     0.004473818  0.3055556 2.911956    44
## [628] {citrus fruit,                                                                          
##        tropical fruit,                                                                        
##        root vegetables}          => {other vegetables}   0.004473818  0.7857143 4.060694    44
## [629] {citrus fruit,                                                                          
##        tropical fruit,                                                                        
##        other vegetables}         => {root vegetables}    0.004473818  0.4943820 4.535678    44
## [630] {citrus fruit,                                                                          
##        root vegetables,                                                                       
##        other vegetables}         => {tropical fruit}     0.004473818  0.4313725 4.110997    44
## [631] {tropical fruit,                                                                        
##        root vegetables,                                                                       
##        other vegetables}         => {citrus fruit}       0.004473818  0.3636364 4.393567    44
## [632] {root vegetables,                                                                       
##        other vegetables,                                                                      
##        soda}                     => {whole milk}         0.004473818  0.5432099 2.125933    44
## [633] {root vegetables,                                                                       
##        whole milk,                                                                            
##        soda}                     => {other vegetables}   0.004473818  0.5500000 2.842486    44
## [634] {other vegetables,                                                                      
##        whole milk,                                                                            
##        soda}                     => {root vegetables}    0.004473818  0.3211679 2.946536    44
## [635] {other vegetables,                                                                      
##        baking powder}            => {whole milk}         0.004372140  0.5972222 2.337318    43
## [636] {whole milk,                                                                            
##        baking powder}            => {other vegetables}   0.004372140  0.4725275 2.442095    43
## [637] {other vegetables,                                                                      
##        hard cheese}              => {whole milk}         0.004372140  0.4623656 1.809537    43
## [638] {whole milk,                                                                            
##        hard cheese}              => {other vegetables}   0.004372140  0.4343434 2.244754    43
## [639] {hamburger meat,                                                                        
##        rolls/buns}               => {whole milk}         0.004372140  0.5058824 1.979846    43
## [640] {curd,                                                                                  
##        whipped/sour cream}       => {other vegetables}   0.004372140  0.4174757 2.157579    43
## [641] {pip fruit,                                                                             
##        fruit/vegetable juice}    => {other vegetables}   0.004372140  0.4574468 2.364156    43
## [642] {bottled water,                                                                         
##        fruit/vegetable juice}    => {yogurt}             0.004372140  0.3071429 2.201713    43
## [643] {rolls/buns,                                                                            
##        fruit/vegetable juice}    => {other vegetables}   0.004372140  0.3006993 1.554061    43
## [644] {whipped/sour cream,                                                                    
##        bottled water}            => {whole milk}         0.004372140  0.5000000 1.956825    43
## [645] {other vegetables,                                                                      
##        butter,                                                                                
##        yogurt}                   => {whole milk}         0.004372140  0.6825397 2.671221    43
## [646] {whole milk,                                                                            
##        butter,                                                                                
##        yogurt}                   => {other vegetables}   0.004372140  0.4673913 2.415551    43
## [647] {other vegetables,                                                                      
##        whole milk,                                                                            
##        butter}                   => {yogurt}             0.004372140  0.3805310 2.727786    43
## [648] {tropical fruit,                                                                        
##        yogurt,                                                                                
##        whipped/sour cream}       => {whole milk}         0.004372140  0.7049180 2.758802    43
## [649] {tropical fruit,                                                                        
##        whole milk,                                                                            
##        whipped/sour cream}       => {yogurt}             0.004372140  0.5512821 3.951792    43
## [650] {whole milk,                                                                            
##        yogurt,                                                                                
##        whipped/sour cream}       => {tropical fruit}     0.004372140  0.4018692 3.829829    43
## [651] {other vegetables,                                                                      
##        yogurt,                                                                                
##        soda}                     => {whole milk}         0.004372140  0.5243902 2.052279    43
## [652] {whole milk,                                                                            
##        yogurt,                                                                                
##        soda}                     => {other vegetables}   0.004372140  0.4174757 2.157579    43
## [653] {other vegetables,                                                                      
##        whole milk,                                                                            
##        soda}                     => {yogurt}             0.004372140  0.3138686 2.249926    43
## [654] {other vegetables,                                                                      
##        rolls/buns,                                                                            
##        soda}                     => {whole milk}         0.004372140  0.4432990 1.734917    43
## [655] {whole milk,                                                                            
##        rolls/buns,                                                                            
##        soda}                     => {other vegetables}   0.004372140  0.4942529 2.554376    43
## [656] {other vegetables,                                                                      
##        whole milk,                                                                            
##        soda}                     => {rolls/buns}         0.004372140  0.3138686 1.706411    43
## [657] {specialty cheese}         => {other vegetables}   0.004270463  0.5000000 2.584078    42
## [658] {mustard}                  => {rolls/buns}         0.004270463  0.3559322 1.935099    42
## [659] {berries,                                                                               
##        whipped/sour cream}       => {whole milk}         0.004270463  0.4719101 1.846891    42
## [660] {berries,                                                                               
##        whole milk}               => {whipped/sour cream} 0.004270463  0.3620690 5.050990    42
## [661] {frozen vegetables,                                                                     
##        fruit/vegetable juice}    => {whole milk}         0.004270463  0.5454545 2.134718    42
## [662] {frozen vegetables,                                                                     
##        rolls/buns}               => {other vegetables}   0.004270463  0.4200000 2.170625    42
## [663] {pork,                                                                                  
##        soda}                     => {whole milk}         0.004270463  0.3589744 1.404900    42
## [664] {root vegetables,                                                                       
##        bottled beer}             => {other vegetables}   0.004270463  0.4421053 2.284869    42
## [665] {tropical fruit,                                                                        
##        newspapers}               => {yogurt}             0.004270463  0.3620690 2.595443    42
## [666] {tropical fruit,                                                                        
##        newspapers}               => {other vegetables}   0.004270463  0.3620690 1.871229    42
## [667] {tropical fruit,                                                                        
##        domestic eggs}            => {yogurt}             0.004270463  0.3750000 2.688138    42
## [668] {whipped/sour cream,                                                                    
##        fruit/vegetable juice}    => {other vegetables}   0.004270463  0.4719101 2.438905    42
## [669] {pastry,                                                                                
##        fruit/vegetable juice}    => {whole milk}         0.004270463  0.5000000 1.956825    42
## [670] {citrus fruit,                                                                          
##        fruit/vegetable juice}    => {whole milk}         0.004270463  0.4117647 1.611503    42
## [671] {sausage,                                                                               
##        pastry}                   => {yogurt}             0.004270463  0.3414634 2.447735    42
## [672] {spread cheese}            => {rolls/buns}         0.004168785  0.3727273 2.026408    41
## [673] {root vegetables,                                                                       
##        herbs}                    => {whole milk}         0.004168785  0.5942029 2.325502    41
## [674] {herbs,                                                                                 
##        whole milk}               => {root vegetables}    0.004168785  0.5394737 4.949369    41
## [675] {meat,                                                                                  
##        other vegetables}         => {whole milk}         0.004168785  0.4183673 1.637343    41
## [676] {meat,                                                                                  
##        whole milk}               => {other vegetables}   0.004168785  0.4183673 2.162188    41
## [677] {yogurt,                                                                                
##        hard cheese}              => {whole milk}         0.004168785  0.6507937 2.546978    41
## [678] {whole milk,                                                                            
##        hard cheese}              => {yogurt}             0.004168785  0.4141414 2.968718    41
## [679] {butter milk,                                                                           
##        yogurt}                   => {other vegetables}   0.004168785  0.4880952 2.522552    41
## [680] {other vegetables,                                                                      
##        butter milk}              => {yogurt}             0.004168785  0.4019608 2.881403    41
## [681] {chicken,                                                                               
##        whipped/sour cream}       => {whole milk}         0.004168785  0.5774648 2.259995    41
## [682] {tropical fruit,                                                                        
##        white bread}              => {other vegetables}   0.004168785  0.4767442 2.463888    41
## [683] {other vegetables,                                                                      
##        white bread}              => {tropical fruit}     0.004168785  0.3037037 2.894308    41
## [684] {tropical fruit,                                                                        
##        frozen vegetables}        => {other vegetables}   0.004168785  0.4767442 2.463888    41
## [685] {pork,                                                                                  
##        beef}                     => {other vegetables}   0.004168785  0.5466667 2.825258    41
## [686] {rolls/buns,                                                                            
##        napkins}                  => {other vegetables}   0.004168785  0.3565217 1.842560    41
## [687] {frankfurter,                                                                           
##        yogurt}                   => {rolls/buns}         0.004168785  0.3727273 2.026408    41
## [688] {tropical fruit,                                                                        
##        brown bread}              => {other vegetables}   0.004168785  0.3904762 2.018042    41
## [689] {brown bread,                                                                           
##        soda}                     => {other vegetables}   0.004168785  0.3306452 1.708826    41
## [690] {butter,                                                                                
##        fruit/vegetable juice}    => {whole milk}         0.004168785  0.5189873 2.031134    41
## [691] {tropical fruit,                                                                        
##        newspapers}               => {rolls/buns}         0.004168785  0.3534483 1.921594    41
## [692] {domestic eggs,                                                                         
##        pastry}                   => {whole milk}         0.004168785  0.4606742 1.802917    41
## [693] {domestic eggs,                                                                         
##        shopping bags}            => {whole milk}         0.004168785  0.4606742 1.802917    41
## [694] {whipped/sour cream,                                                                    
##        pastry}                   => {other vegetables}   0.004168785  0.5540541 2.863438    41
## [695] {whipped/sour cream,                                                                    
##        pastry}                   => {whole milk}         0.004168785  0.5540541 2.168373    41
## [696] {pastry,                                                                                
##        shopping bags}            => {soda}               0.004168785  0.3504274 2.009594    41
## [697] {citrus fruit,                                                                          
##        bottled water}            => {tropical fruit}     0.004168785  0.3082707 2.937831    41
## [698] {citrus fruit,                                                                          
##        soda}                     => {yogurt}             0.004168785  0.3253968 2.332564    41
## [699] {citrus fruit,                                                                          
##        soda}                     => {other vegetables}   0.004168785  0.3253968 1.681701    41
## [700] {root vegetables,                                                                       
##        other vegetables,                                                                      
##        butter}                   => {whole milk}         0.004168785  0.6307692 2.468609    41
## [701] {root vegetables,                                                                       
##        whole milk,                                                                            
##        butter}                   => {other vegetables}   0.004168785  0.5061728 2.615980    41
## [702] {other vegetables,                                                                      
##        whole milk,                                                                            
##        butter}                   => {root vegetables}    0.004168785  0.3628319 3.328779    41
## [703] {root vegetables,                                                                       
##        yogurt,                                                                                
##        rolls/buns}               => {other vegetables}   0.004168785  0.5774648 2.984428    41
## [704] {root vegetables,                                                                       
##        other vegetables,                                                                      
##        yogurt}                   => {rolls/buns}         0.004168785  0.3228346 1.755157    41
## [705] {root vegetables,                                                                       
##        other vegetables,                                                                      
##        rolls/buns}               => {yogurt}             0.004168785  0.3416667 2.449192    41
## [706] {other vegetables,                                                                      
##        yogurt,                                                                                
##        rolls/buns}               => {root vegetables}    0.004168785  0.3628319 3.328779    41
## [707] {herbs,                                                                                 
##        other vegetables}         => {whole milk}         0.004067107  0.5263158 2.059815    40
## [708] {herbs,                                                                                 
##        whole milk}               => {other vegetables}   0.004067107  0.5263158 2.720082    40
## [709] {tropical fruit,                                                                        
##        hygiene articles}         => {whole milk}         0.004067107  0.6060606 2.371909    40
## [710] {whole milk,                                                                            
##        hygiene articles}         => {tropical fruit}     0.004067107  0.3174603 3.025409    40
## [711] {white bread,                                                                           
##        soda}                     => {whole milk}         0.004067107  0.3960396 1.549960    40
## [712] {soda,                                                                                  
##        chocolate}                => {rolls/buns}         0.004067107  0.3007519 1.635099    40
## [713] {rolls/buns,                                                                            
##        chocolate}                => {soda}               0.004067107  0.3448276 1.977481    40
## [714] {pork,                                                                                  
##        whipped/sour cream}       => {other vegetables}   0.004067107  0.4938272 2.552176    40
## [715] {brown bread,                                                                           
##        newspapers}               => {whole milk}         0.004067107  0.5333333 2.087279    40
## [716] {domestic eggs,                                                                         
##        brown bread}              => {whole milk}         0.004067107  0.5970149 2.336507    40
## [717] {root vegetables,                                                                       
##        brown bread}              => {other vegetables}   0.004067107  0.4000000 2.067262    40
## [718] {rolls/buns,                                                                            
##        brown bread}              => {other vegetables}   0.004067107  0.3225806 1.667147    40
## [719] {whipped/sour cream,                                                                    
##        margarine}                => {whole milk}         0.004067107  0.5970149 2.336507    40
## [720] {tropical fruit,                                                                        
##        margarine}                => {yogurt}             0.004067107  0.4347826 3.116681    40
## [721] {pip fruit,                                                                             
##        butter}                   => {other vegetables}   0.004067107  0.5555556 2.871198    40
## [722] {bottled water,                                                                         
##        newspapers}               => {whole milk}         0.004067107  0.3603604 1.410324    40
## [723] {domestic eggs,                                                                         
##        pastry}                   => {other vegetables}   0.004067107  0.4494382 2.322767    40
## [724] {domestic eggs,                                                                         
##        bottled water}            => {other vegetables}   0.004067107  0.4444444 2.296958    40
## [725] {whipped/sour cream,                                                                    
##        soda}                     => {yogurt}             0.004067107  0.3508772 2.515217    40
## [726] {pastry,                                                                                
##        bottled water}            => {whole milk}         0.004067107  0.4545455 1.778931    40
## [727] {tropical fruit,                                                                        
##        pastry}                   => {rolls/buns}         0.004067107  0.3076923 1.672832    40
## [728] {citrus fruit,                                                                          
##        bottled water}            => {yogurt}             0.004067107  0.3007519 2.155900    40
## [729] {bottled water,                                                                         
##        shopping bags}            => {soda}               0.004067107  0.3703704 2.123961    40
## [730] {sausage,                                                                               
##        bottled water}            => {soda}               0.004067107  0.3389831 1.943964    40
## [731] {other vegetables,                                                                      
##        yogurt,                                                                                
##        pastry}                   => {whole milk}         0.004067107  0.6153846 2.408399    40
## [732] {whole milk,                                                                            
##        yogurt,                                                                                
##        pastry}                   => {other vegetables}   0.004067107  0.4444444 2.296958    40
## [733] {other vegetables,                                                                      
##        whole milk,                                                                            
##        pastry}                   => {yogurt}             0.004067107  0.3846154 2.757064    40
## [734] {tropical fruit,                                                                        
##        other vegetables,                                                                      
##        rolls/buns}               => {whole milk}         0.004067107  0.5194805 2.033064    40
## [735] {tropical fruit,                                                                        
##        whole milk,                                                                            
##        rolls/buns}               => {other vegetables}   0.004067107  0.3703704 1.914132    40