[R] How to change the number of bins?

wong bowie bow|ewongg @end|ng |rom gm@||@com
Mon Mar 11 01:29:26 CET 2019


You are right. Actually this variable represents the number of day passed
after contacting a client, 999 means the client has never been contacted.

But I am not supposed to change the value, am I?

David Winsemius <dwinsemius using comcast.net> 於 2019年3月10日 週日 下午10:48寫道:

> Seems rather likely that 999 is not really a measured value but rather
> is a missing value indicator.
>
>
> --
>
> David.
>
> On 3/10/19 1:54 PM, wong bowie wrote:
> > I wish to calculate the weight of evidence of a variable x, which is
> > positively skewed, with over 6000 of the observations are 999 but only
> 200
> > range from 1-27. I used the code,
> >
> > “IV<-create_infotables(data=Test[,-1],y="class",bins=10)”
> >
> > However, no matter what number I used in bins parameter, I can only get 2
> > bins, [1,27] and [999,999]. Is there any way I can look into the [1,27]
> > closely because they represent a lot? The output from R is shown below,
> >
> > Table$pdays
> >      pdays        N   Percent     WOE       IV
> >      1 [1,27]    243  0.03807584  2.6743166 0.5267751
> >      2 [999,999] 6139 0.96192416 -0.2230081 0.5707022
> >
> > Thank you very much!!
> >
> >       [[alternative HTML version deleted]]
> >
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