[R] package nlme: covariates and self-starting nonlinear regression

Douglas Bates bates at stat.wisc.edu
Thu Aug 22 22:34:40 CEST 2002

kjetil halvorsen <kjetilh at umsanet.edu.bo> writes:

> For the last Q: For fixed effects only, see the functions
> gls  and gnls.

Perhaps nls too.

> Peter Schlattmann wrote:
> > 
> > Dear all,
> > 
> > I want to include covariates into the self-starting linear
                                                        ^^^^^^ nonlinear?
> > regression functions SSbiexp and SSfol. Is there a way to do this
> > or do I need to define my own functions depending on the
> > covariates?

Can you give us an example of what you mean by "include covariates"?

Douglas Bates                            bates at stat.wisc.edu
Statistics Department                    608/262-2598
University of Wisconsin - Madison        http://www.stat.wisc.edu/~bates/
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