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Re: st: Estimated Marginal Means in Stata?


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Estimated Marginal Means in Stata?
Date   Wed, 20 Sep 2006 10:43:03 +0100 (BST)

Dan:
If you type -help anova-, than you can find at the bottom a link to
-help anova_postestimation-, which in turn leads to many good stuff,
and among those is -help adjust- which has a description saying
``adjusted predictions of xb or exp(xb)''. It may be a bit cryptic but
the marginal means are the sum of chosen values of x multiplied by the
estimated parameter. This sum, or marginal mean, is often called xb,
after the matrix multiplication that creates this value.
HTH,
Maarten

--- Dan Barton <daniel.barton@umontana.edu> wrote:
> I could really use some help getting stata to produce estimated 
> marginal means from an ANCOVA.  Is there an est or postest command
> that does this automagically, or do I need to calculate them by hand?


-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands

visiting adress:
Buitenveldertselaan 3 (Metropolitan), room Z434

+31 20 5986715

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


		
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