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2007 Sep 14
1
covariates in nlmer function
I am trying to explore nlmer by running some nlme examples from Pinheiro & Bates (2000). I do not seem to find information how to specify fixed effects covariates to nlmer models. Specifically, I tried to run the "Carbon Dioxide Uptake" example from p. 368 onwards in the PB200 book. The model without fixed effects covariates runs well but how to tell nlmer to include Type and Treatment similar to the nlme model on p. 374 in the PB2000 book? Or is this something that has not been implemented yet? regards, Kari Ruohonen