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vonbertelanffy
2008 Mar 24
0
Error using augPred with nlme grouped data
Hello all,
I am having a problem using augPred after I have created an nlme object. My
data is 3933 rows long with no NA's, and is grouped with this function:
vanfem<-groupedData(mass~age.years|name, data=av.mex, labels=list(x="Age",
y="Mass"), units=list(x="(years)", y="(kg)"))
Under the grouping factor "name", this is a character