Displaying 1 result from an estimated 1 matches for "a9a4078e".
2004 Jul 20
1
Performance problem
Dear all,
I have a performance problem in terms of computing time.
I estimate mixed models on a fairly large number of subgroups (10000) using
lme(.) within the by(.) function and it takes hours to do the calculation
on a fast notebook under Windows.
I suspect by(.) to be a poor implementation for doing individual analysis
on subgroups.
Is there an alternative and more efficient way for doing