[R] crossed random fx nlme lme4

Emilio A. Laca ealaca at ucdavis.edu
Thu Jul 14 01:35:02 CEST 2005

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  


ps I have already read Pinheiro & Bates, the jan 05 newsletter, and  
several postings.

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