[R] How to change the number of bins?

[David Winsemius]

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!!
>
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>
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