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 ----- Edelleenlähetetty viesti päättyy ----- 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.
