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st: using Stata's micombine command on a SAS-imputed dataset


From   "G. ter Riet" <G.terRiet@amc.uva.nl>
To   statalist@hsphsun2.harvard.edu
Subject   st: using Stata's micombine command on a SAS-imputed dataset
Date   Mon, 11 Oct 2004 10:53:09 +0200

Hi,
A colleague of mine imputed data using SAS's mi command. The dataset, containing m=5 imputations, I translated into a .dta format using StatTransfer. I wondered if Stata's micombine command might be able to get the regression coefficients. I created the two variables _i and _j that normally would be present had we used Stata's mvis command instead of SAS's mi command and ordered the dataset as mvis would have.

I still get the following error message after using micombine.

. micombine regress s_mh dum1grp dum2grp gesl lft cd4 vload, impid (_j)
no row-identifier variable found - data may have incorrect format
r(198);

What format does Stata expect? Any help to sort this out will be greatly appreciated.

Gerben ter Riet, MD PhD, Academic Medical Center
Dept. General Practice, Room J2-118, 1105 AZ Amsterdam

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