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2006 Aug 09
1
nested ANOVA using lme
...he model is unbalanced and I want to calculate estimates of the
variance components. In this case the REML approach should give more
reliable estimates than the method I have used. But I am unable to work
out how to specify a nested factor using the "lme" function. I have
tried:
>firstgo<-lme(Diam~Env+Env:Site,data=environ)
>secondgo<-lme(Diam~Env+Env%in%Site,data=environ)
>thirdgo<-lme(Diam~Env+Env/Site,data=environ)
But I keep getting this error:
Error in getGroups.data.frame(dataMix, groups) :
Invalid formula for groups
If anyone could help me with code for...