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st: IPF troubles


From   Andrew Criswell <stata.statistics@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: IPF troubles
Date   Fri, 15 May 2009 21:46:17 +0700

Hello All,

This seems like a straight forward example. But I don't understand why
it fails. I am using version 10.1

input str6 gender str8 party wgt
gender party wgt
male democrat 55
male repub 65
female democrat 50
female repub 30
end

. ipf [fweight = wgt], fit(gender + party)
Deleting all matrices......

Expansion of the various marginal models
----------------------------------------
marginal model 1 varlist :  gender
marginal model 2 varlist :  party
type mismatch
r(109);

end of do-file

r(109);

.


-- 
Andrew Criswell, Ph.D.
Graduate School
Bangkok University
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