Programming the statistical procedures from SAS

Calculate Z Score

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Contributor
Posts: 64

Calculate Z Score

Hello,

 

I have a 10,000 records data set. Using z-score I need to select and flag the records as follows:

 

1. Top 15% high $$ customers (z-score of the dollar_amt variable greater than +1)

2. Bottom 15% low $$ customers (z-score of the dollar_amt variable less than -1).

 

I need to know if there is a way to do this in SAS and how.

 

Regards,

 

Grand Advisor
Posts: 16,880

Re: Calculate Z Score

Yes, Proc stdize will create Z scores or you can manually calculate this via a data step or proc SQL step. 

Contributor
Posts: 64

Re: Calculate Z Score

Hi Reeza,

 

Below is the code I am using

 

proc standard data=sample mean=0 std=1 out=sample_out;

var amount transaction;

run;

 

Would this give me the top 15% customer if I put the condition "amount>1" and bottom 15% if I put "amount<-1". This is the score calculated from the above step for amount. I see some conditions are not fulfilled and I get 0 observations. For example if I put transaction<-1

 

Thanks

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