R协会-为什么电梯总是1?

问题描述 投票:0回答:0

我是 R 的新手,我有一个来自 CSV 文件的大型数据库的练习 1360 行 255 列,需要应用先验 问题是,当我这样做以获得关联规则列表时,升力总是最终为 1 并且频率图相同,它们都是 1 我在我的代码中做错了什么还是因为 csv 文件?

summary(data_rules)
set of 8258175 rules

rule length distribution (lhs + rhs):sizes
      2       3 
  64770 8193405 

   Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
  2.000   3.000   3.000   2.992   3.000   3.000 

summary of quality measures:
    support    confidence    coverage      lift       count     
 Min.   :1   Min.   :1    Min.   :1   Min.   :1   Min.   :1361  
 1st Qu.:1   1st Qu.:1    1st Qu.:1   1st Qu.:1   1st Qu.:1361  
 Median :1   Median :1    Median :1   Median :1   Median :1361  
 Mean   :1   Mean   :1    Mean   :1   Mean   :1   Mean   :1361  
 3rd Qu.:1   3rd Qu.:1    3rd Qu.:1   3rd Qu.:1   3rd Qu.:1361  
 Max.   :1   Max.   :1    Max.   :1   Max.   :1   Max.   :1361  

mining info:
           data ntransactions support confidence
 df_transaction          1361    0.01        0.5
                                                                                                       call
 apriori(data = df_transaction, parameter = list(support = 0.01, confidence = 0.5, minlen = 2, maxlen = 3))

> inspect(head(data_rules,10))
     lhs                           rhs                        support confidence coverage lift count
[1]  {Hair.Conditioner=[0,1]}   => {Chardonnay=[0,1]}         1       1          1        1    1361 
[2]  {Chardonnay=[0,1]}         => {Hair.Conditioner=[0,1]}   1       1          1        1    1361 
[3]  {Hair.Conditioner=[0,1]}   => {Sunglasses=[0,1]}         1       1          1        1    1361 
[4]  {Sunglasses=[0,1]}         => {Hair.Conditioner=[0,1]}   1       1          1        1    1361 
[5]  {Hair.Conditioner=[0,1]}   => {Turkey.Noodle.Soup=[0,1]} 1       1          1        1    1361 
[6]  {Turkey.Noodle.Soup=[0,1]} => {Hair.Conditioner=[0,1]}   1       1          1        1    1361 
[7]  {Hair.Conditioner=[0,1]}   => {Frozen.Carrots=[0,1]}     1       1          1        1    1361 
[8]  {Frozen.Carrots=[0,1]}     => {Hair.Conditioner=[0,1]}   1       1          1        1    1361 
[9]  {Hair.Conditioner=[0,1]}   => {Bananas=[0,1]}            1       1          1        1    1361 
[10] {Bananas=[0,1]}            => {Hair.Conditioner=[0,1]}   1       1          1        1    1361 `

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解释为什么电梯总是 1

的解决方案
r associations lift
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