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Re: st: glm and proc mixed

From   Buzz Burhans <>
Subject   Re: st: glm and proc mixed
Date   Tue, 22 Apr 2003 11:52:55 -0400

There is no full equivalent in Stata to PROC MIXED.

Limited capability in Stata itself is provided by some, but not all, of the xt series of commands: xtreg, xtlogit, xttobit, xtregar, xtrchh, xtprobit, xtpoisson, xtnbreg, xtivreg, xtintreg, xthtaylor, xtcloglog, xtabond. In general, these commands often allow for a random intercept, but not random covariate effects, and often have little capability to model between or within panel error covariance.

Alternatively, a much more flexible user written program is available: gllamm. GLLAMM also has limited capability for applying structured covariances.

There is not, at this time, a full equivalent to Proc Mixed. Stata is reportedly working on one; many of us are anxiously awaiting it's release.

Buzz Burhans
Cornell University Dept. of Animal Science

At 04:22 PM 4/22/03 +0200, you wrote:

Dear all,

I have to study generalized linear regression model with repeated measures.
I know  that with SAS, the function is PROC MIXED

What is the equivalent with Stata ?


Alvine bissery
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