[R-sig-ME] Large data set and mixed models
michael.beaulieu at c-strasbourg.fr
Fri Oct 17 15:02:10 CEST 2008
I would like two compare the diving behaviour of two groups of penguins
(7 penguin in each group). Each penguin performed several dives within
several foraging trips. As a result, I got a huge data set of dives
To compare the diving behaviour of the two groups, I used a mixed model
-the penguin as a random factor,
-the number of dives nested in the foraging trip as a repeated factor,
-the group, the foraging trip and maximal depth as fixed factors.
Covariance structure was auto-regressive.
I tried this model on SPSS, SAS and R but all failed.
Has anybody been faced with such a huge dataset analysed with mixed models?
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