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re: st: loop for z-score


From   Red Owl <rh.redowl@liu.edu>
To   <statalist@hsphsun2.harvard.edu>
Subject   re: st: loop for z-score
Date   Sat, 28 Dec 2013 13:32:20 -0500

In addition to Nick Cox's suggestion to use -egen-'s -mean()- and -sd()-
functions, you could consider the -center- ado program by Ben Jann.

*** BEGIN CODE ***
net describe center, from(http://fmwww.bc.edu/RePEc/bocode/c)
*** END CODE ***

Red Owl
redowl@liu.edu


> Almazea Fatima <almazea.fatima@sydney.edu.au> wrote:
>
> I have a variable "quantity", I want to standardize(z score 3) it by
"region" and "season"
> I used following for this purpose:
> egen z=std(quantity)
> Problem is it do not have "by" option, so I want to do it by loop..
> Can anybody help me to create loop for it???????
>
> Thank you in anticipation.
>
> Regards
> Almazea
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