Dear all,
Some days ago I posted the same message below, but unfortunately with no
reply.
So, apologizes for this my re-sending, but I hope there is now someone
on-line that can help me
In using the lme() function from the nlme package, I would like to specify a
particular correlation struct
Dear all,
In using the lme() function from the nlme package, I would like to specify a
particular correlation structure for the random effects.
For instance, for a 3 by 3 matrix, say, I am interested in assuming a
`quasi-diagonal'
matrix having zero entries in all but the first column (and the main
