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st: Sample restriction in -predict- following regression with -subpop-


From   Laurel A Copeland <lacop@umich.edu>
To   statalist@hsphsun2.harvard.edu
Subject   st: Sample restriction in -predict- following regression with -subpop-
Date   Thu, 19 Dec 2002 12:14:26 -0500

Could someone point me to information on what restriction, if any, is placed on the population for which -predict- produces values, after a regression for which a subpopulation is specified? I do not find -predict- and -subpop- together using -findit-. Here is an example of what we are running.

svypois cesd_2 pred1 pred2 pred3, subpop (cesdage1)
predict predicted
sum predicted cesd_2

The above seems to produce values for the whole sample, not just the subsample. Is that right?

Will this give us the subsample specified by "subpop (cesdage1)" ?

svypois cesd_2 pred1 pred2 pred3, subpop (cesdage1)
predict predicted
sum predicted cesd_2 if cesdage1==1

Thank you,
Laurel & Liz

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