Are you familiar with Pinheiro and Bates (2000) Mixed-Effects
Models in S and S-Plus (Springer)? This book describes how to fit this
type of model using 'lme'. I highly recommend this book for anyone
interested in this type of problem.
Hope this helps,
Spencer Graves
Martyn Colins wrote:
I would like to know how to fit a random effects model to equally
spaced time series data. The data is multivariate normal data, I have
11,000 subjects each with 72 monthly observations spanning 6 years. I
have 3 fixed effects and 1 random effect, these effects are the same
for all 72 observations (i.e. the same model for each response).
I'm would like to know how to fit such a model in S-Plus?
Also, I'm interested in finding out the correlations between the fixed
effects and the random effect? I would be very grateful for your
suggestions.
Regards,
Martyn
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