[R] Apriori Results- Same number to support an confidence

[Raquel D.]

Hi!


Does anybody knows why it can be happening? Lift = 1




rule length distribution (lhs + rhs):sizes
 1
68

   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
      1       1       1       1       1       1

summary of quality measures:
    support           confidence            lift
 Min.   :0.002050   Min.   :0.002050   Min.   :1
 1st Qu.:0.002899   1st Qu.:0.002899   1st Qu.:1
 Median :0.004465   Median :0.004465   Median :1
 Mean   :0.008703   Mean   :0.008703   Mean   :1
 3rd Qu.:0.007605   3rd Qu.:0.007605   3rd Qu.:1
 Max.   :0.059593   Max.   :0.059593   Max.   :1

mining info:
 data ntransactions support confidence
  txn        438612   0.001      0.002



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