Dear Tomas
You can produce the results in Montgomery Montgomery with
lme. Please remark that you should indicate the nesting with the
levels in your nested factor. Therefore I recreated your data,
but used 1,...,12 for the levels of batch instead of 1,...,4.
purity<-c(1,-2,-2,1,-1,-3,0,4, 0,-4, 1
Dear R user,
I am trying to reproduce the results in Montgomery D.C (2001, chap 13,
example 13-1).
Briefly, there are three suppliers, four batches nested within suppliers
and three determinations of purity (response variable) on each batch. It is
a two stage nested design, where suppliers
