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st: question about "atmeans" vs. "asbalanced"


From   "Visintainer, Paul" <Paul.Visintainer@baystatehealth.org>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   st: question about "atmeans" vs. "asbalanced"
Date   Thu, 18 Nov 2010 09:38:04 -0500

The command -margins- provides two approaches for adjusting means: "atmeans" and "asbalanced". (I know SAS coined the phrase "least-squares means" and that "asbalanced" provides l-s means.)  Usually the results are close, but I suppose they don't have to be.  Is one approach preferred (or expected) over another?  When presenting "adjusted" means in a manuscript, am I implying the use of one method more than the other?  

Any suggestions would be helpful.

-Paul

________________________________________________
Paul F. Visintainer, PhD

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