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st: RE: Working with groups
Your question is quite unclear: if you intend to look at two specific
regions, say
preserve
keep if region==1 | region==4
...
analysis
...
restore
if you want region 1 and 4.
Martin Weiss
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-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of
[email protected]
Sent: Thursday, April 10, 2008 5:38 PM
To: [email protected]
Subject: st: Working with groups
Dear Statalist,
I am trying to model the effect of a treatment (x-variable) on an
outcome (y-variable). My database contains information of several regions,
how could I work only with two regions? Is there any specific command?
Thanks a lot.
Alejandra Molina
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