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Re: st: xtmixed & PROC MIXED


From   Lucas Goossens <goossens@bmg.eur.nl>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: xtmixed & PROC MIXED
Date   Fri, 11 Dec 2009 15:13:29 +0100

I also tried to reproduce results from SAS proc mixed in Stata.
Your discussion was very helpful to me, but there is still something that I do not understand. I got the same coefficients, standard errors covariances for all variables, but the variances as well as the constant in SAS were different from those in Stata.
Could anyone explain this?

--
Lucas Goossens, MSc
institute for Medical Technology Assessment (iMTA)
institute for Health Policy and Management (iBMG)
Health Economics and Health Technology Assessment section

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