1. Post on R-sig-mixed-models, not here. 2. Models 2 and 3 make no sense (to me, anyway). What do you think they mean? (Don't answer here -- explain on the mixed models list).
-- Bert On Thu, Aug 16, 2012 at 9:13 PM, li li <hannah....@gmail.com> wrote: > Dear all, > I am trying to use R to fit mixed models. > Take the following example, where ind is a random effect and > sample is fixed. I wanted to fit > Model 1: values = ind + sample > Model 2: values =ind * sample > Model 3: values=ind(sample) + sample > > Tried to use the below for mod1, but it did not work. Can anyone give > some help on this. Thanks so much. > mod1 <- lme(values ~ sample + > random=~ 1|ind, data=y) Your syntax is wrong. Re-read ?lme (random is a separate argument, not part of the formula). > > > > > > > > > values ind sample > 1 0.03325 1 1 > 2 0.03305 1 1 > 3 0.03185 1 1 > 4 0.03515 1 1 > 5 0.03375 1 1 > 6 0.01180 1 2 > 7 0.01850 1 3 > 8 0.02915 1 4 > 9 0.06200 1 5 > 10 0.03230 2 1 > 11 0.03345 2 1 > 12 0.03385 2 1 > 13 0.03605 2 1 > 14 0.03225 2 1 > 15 0.01145 2 2 > 16 0.01805 2 3 > 17 0.02950 2 4 > 18 0.05995 2 5 > 19 0.03425 3 1 > 20 0.03575 3 1 > 21 0.03535 3 1 > 22 0.03380 3 1 > 23 0.03410 3 1 > 24 0.01050 3 2 > 25 0.01735 3 3 > 26 0.03140 3 4 > 27 0.06170 3 5 > 28 0.03430 4 1 > 29 0.03185 4 1 > 30 0.03165 4 1 > 31 0.03380 4 1 > 32 0.03235 4 1 > 33 0.01100 4 2 > 34 0.01825 4 3 > 35 0.03045 4 4 > 36 0.06060 4 5 > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org 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. -- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm ______________________________________________ R-help@r-project.org 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.
