I am new to R and am trying to specify a model for mixed model analysis. When I run the following model I get an error:
AAT<- lmer(Y ~ S + A + (1|S:A/H), data=AT, REML=True) The error looks like this: Error in Spar_loc:`:` : NA/NaN argument In addition: Warning messages: 1: In model.matrix.default(mt, mf, contrasts) : variable 'Spar_loc' converted to a factor 2: In Spar_loc:`:` : numerical expression has 720 elements: only the first used I am having trouble specifying th random component. It should reflect the random term as H nested within the interaction of S & A. What am I doing wrong? :confused: -- View this message in context: http://www.nabble.com/Help-with-lme4-model-specification-tp23415908p23415908.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.