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st: get a dummy for year*region


From   John Hennen <jhennen@mclean.org>
To   statalist@hsphsun2.harvard.edu
Subject   st: get a dummy for year*region
Date   Tue, 10 Sep 2002 17:31:45 -0400

Marcelo Moreira wrote:

> Hi there.
>
> I would like to know how I can get a dummy for each possible
> combination between year and region.
>
> I tried:
>
> tab region your, gen(dummy)
>
> But it doesnt work. Any hints?
>
> RESPONSE:

try:
tempvar x
egen `x' = group(region year)
tab `x', gen(dummy)

john





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