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st: Creating a variable with the highest value from two other variables


From   Christer Thrane <lineea@broadpark.no>
To   statalist@hsphsun2.harvard.edu
Subject   st: Creating a variable with the highest value from two other variables
Date   Sat, 13 Oct 2007 07:47:48 +0200

Hi,

I have two income measures, X and Y. I want to create a variable, Z, that is equal to X for those obs where X>=Y and equal to Y for those obs where Y>X. Like this:

id X Y Z
1 12 11 12
2 10 10 10
3 10 12 12

Is there a simple way?

BR,

Christer
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