R help - May 2017 - Apriori Results- Same number to support an confidence

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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Bert Gunter

"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )


On Tue, May 23, 2017 at 3:52 PM, Raquel D. <raqueldourado at hotmail.com>
wrote:
> Hi!
>
>
> Does anybody knows why it can be happening? Lift = 1
Doubt it. Pretty incoherent, to me anyway.

But this is probaby the wrong place to post. This list is about R
programming; statistics is generally OT. Try posting on
stats.stackexchange.com for statistics issues. Being more coherent
might help, too

-- Bert

>
>
>
>
> 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
>
>
>
>         [[alternative HTML version deleted]]
>
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