I need to specify a model similar to this
lme.formula(fixed = sqrt(lbPerAc) ~ y + season + y:season, data = cy,
random = ~y | observer/set, correlation = corARMA(q = 6))
except that observer and set are actually crossed instead of nested.
observer and set are factors
y and lbPerAc are numeric
If you know how to do it or have suggestions for reading I will be
grateful.
eal
ps I have already read Pinheiro & Bates, the jan 05 newsletter, and
several postings.
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