Have you tried lme in the nlme package? Pinheiro and Bates (2000)
Mixed-Effects Models in S and S-Plus (Springer) describes how to do that
-- though perhaps not in exactly your terms. If you have studied the
book and still can't see how to do it, please submit another post --
after reading the posting guide! "www.R-project.org/posting-guide.html".
Please include a simple, self-contained, reproducible example showing
something that you tried to help illustrate what you don't understand.
From a one-line question, it is difficult for anyone to guess what you
might not know.
hope this helps.
spencer graves
Graciela Perez wrote:
> Hi:
> Does anyone know how to run a test of trends for repeated measurements
> in R?
> Thanks
> Graciela
>
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