Message-ID: <3D67E811.8080007@bigpace.med.utah.edu>
Date: 2002-08-24T20:09:53Z
From: Nathan Leon Pace, MD, MStat
Subject: nlme
In the non linear mixed effects package a groupedData object can be
created to facilitate modeling.
The gD object includes a formula of the form 'response variable' ~
'primary covariate' | 'grouping factor'.
In experiments creating response surfaces there are 2 or more primary
covariates.
Is there any way to use the groupedData() function to include 2 primary
covariates?
Thanks
--
Nathan Leon Pace, MD, MStat Work:nlpace at bigpace.med.utah.ed
Department of Anesthesiology Play:nlpaces at attbi.com
University of Utah Voice Work:801.581.6393 Play:801.467.2925
Salt Lake City, Utah Fax Work:801.581.4367 Play:801.467.0555
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