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2007 Apr 12
0
LME: incompatible formulas for groups
...m" and "correlation". The syntax for the model I want to calculate is as follows: model<- lme(diameter ~ flowers*timef + competition*timef + population*timef, data= Timeseries, random= ~flowers|genotype, weights= varIdent(form= ~1|timef), correlation= corAR1(form= ~time|plantind) ) The model works when I specify random effects and correlation at the same level of grouping (either genotype or plantind). But this does not make too much sense in this analysis. The data structure (a subset of the whole data set is listed below): ?timef? is a factor with three levels (time...