[R] nested, repeated measure lme

[Christoph Scherber]

Dear all,

Suppose I have a nested, repeated measure lme model. Which of the following formulae is  correct?
(assuming data are sampled from several plots in an agricultural experiment)

(1) y~explanatory.variables,random=~time|block/plot/subplot/individual
(2) y~explanatory.variables,random=~time|unique.ID.of.every.individual

I have read that (2) is the only approach that works. But how could I then still include the nesting information from (1)?

Many thanks for your help!

Best wishes
Christoph


(using R 2.9.0 and the nlme library on Windows XP)




-- 
Dr. rer.nat. Christoph Scherber
University of Goettingen
DNPW, Agroecology
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Germany

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