Hello Pekka, there may be a way around it. However, you should provide commented, minimal, self-contained, reproducible code so we can see what you are trying to do. We need to see exactly what you are telling R, and what nlme is telling you.
Cheers Andrew On Tue, Sep 12, 2006 at 09:49:28AM +0300, Pekka Kontiainen wrote: > Hello! > > > So, my problem is following. I have bird offspring growth data and I'd > like to model individual growth curves (aim is to study asymptotes and > inflection points) with nlme according to Pinheiro & Bates 2000: first using > nlsList to generate individual curves and then nlme to study the > parameters and fixed effects. The data is structured to two levels. I > have broods and individuals within the broods. Problems arise if I specify > the groupedData object to have two levels. Running of the nlme gives me an > error message "can't run the model with multiple levels", or something > alike.. > > Is there a way around this or should I start looking fo another way of > analysing the data? > > Thank you for your time. > > Pekka Kontiainen > Ph.D. Candidate > Bird Ecology Unit > Department of Environmental and Biosciences > P.O. Box 65 (00014) University of Helsinki > FINLAND > Phone +35844-5496858 > > ----- Edelleenl?hetetty viesti p??ttyy ----- > > > Pekka Kontiainen > Ph.D. Candidate > Bird Ecology Unit > Department of Environmental and Biosciences > P.O. Box 65 (00014) University of Helsinki > FINLAND > Phone +35844-5496858 > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. -- Andrew Robinson Department of Mathematics and Statistics Tel: +61-3-8344-9763 University of Melbourne, VIC 3010 Australia Fax: +61-3-8344-4599 Email: [EMAIL PROTECTED] http://www.ms.unimelb.edu.au ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
