[R] nlme

Nathan Leon Pace, MD, MStat nlpace at remi.med.utah.edu
Sat Aug 24 22:09:53 CEST 2002

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 

Is there any way to use the groupedData() function to include 2 primary 


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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