Dear R users,
I am trying to fit a GLMM using lmer to a dataset where the brood identity (LNRREIR) is nested within mothers identity. The reason for this is that each mother can have several nests within each year and also between years. I am running the following script (actually I have tried all different combinations with LNRREIR and mother): mod <- lmer(sr~z.hatchday + (1|LNRREIR:mother) + (1|mother), family=binomial, data=aggrsexfil) Error in LNRREIR:mother : result would be too long a vector In addition: Warning messages: 1: numerical expression has 64 elements: only the first used in: LNRREIR:mother 2: numerical expression has 64 elements: only the first used in: LNRREIR:mother Is this the wrong way to specify it or what is happening here? I am also wondering if only including mother as a random factor, do R understand that its nested? That is, when there are e.g. 60 different nests and 40 mothers. Do R then take into account that each mother can have multiple broods? In that way the nesting seems redundant..? Thanks for all help! Best regards, Arild -------------------------------------------- Arild Husby (M.Sc.), Research Technician, Department of Biology, Realfagbygget, Norwegian University of Science and Technology, N-7491 Trondheim NORWAY e-mail: <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED] mobile: +47 92294412 office : +47 73596266 [[alternative HTML version deleted]] ______________________________________________ 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
