Date:         Wed, 27 Jul 2005 10:36:14 -0400
Reply-To:     Kevin Roland Viel <kviel@EMORY.EDU>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Kevin Roland Viel <kviel@EMORY.EDU>
Subject:      MIXED: Design matrix (X) for fixed effects
Content-Type: TEXT/PLAIN; charset=US-ASCII

Greetings,

  Is it possible to obtain the (working) design matrix for fixed effects,
the X matrix below, that the MIXED procedure uses for a given analyses?
Hopefully, there will be something analogous to the G option to the RANDOM statement
or the R option to the REPEATED statement.

y = X*beta + Z*gamma + epsilon

  In general, I would like to know if the NOINT option to the MODEL
statement results in either a b0 = 0 (constraint) or the absences of both
the first column of ones in the X matrix and the b0 parameter in the beta
vector?

Thanks,

Kevin

Kevin Viel
Department of Epidemiology
Rollins School of Public Health
Emory University
Atlanta, GA 30322