________________________________ From: Irene Mantzouni Sent: Mon 10/03/2008 7:17 PM To: R-sig-mixed-models at r-project.org Subject: multivariate mixed model Hi all! Just a quick question: Is it possible to fit a normal multivariate linear mixed model either with nlme or lme4? Reference to an example would be very helpful! Thank you!
multivariate mixed model
3 messages · Irene Mantzouni, Douglas Bates, Andrew Robinson
On Mon, Mar 10, 2008 at 1:58 PM, Irene Mantzouni <ima at aqua.dtu.dk> wrote:
From: Irene Mantzouni Sent: Mon 10/03/2008 7:17 PM To: R-sig-mixed-models at r-project.org Subject: multivariate mixed model
Is it possible to fit a normal multivariate linear mixed model either with nlme or lme4?
Questions like that can precipitate answers like
install.packages("fortunes")
library(fortunes)
fortune("Yoda")
However, I don't know of an easy way of fitting such models using the
nlme or the lme4 packages.
Reference to an example would be very helpful!
It's not easy, but it can be done. The approach is to define each multivariate response as a cluster. I did it in nlme for the following article: Robinson, A.P., 2004. Preserving correlation while modelling diameter distributions. Canadian Journal of Forest Research 34, 221 Daniel Hall (University of Georgia, I think) did it for non-linear models, in a paper published in Biometrics (I think) about 5 years ago ... Andrew
On Mon, Mar 10, 2008 at 07:58:35PM +0100, Irene Mantzouni wrote:
________________________________ From: Irene Mantzouni Sent: Mon 10/03/2008 7:17 PM To: R-sig-mixed-models at r-project.org Subject: multivariate mixed model Hi all! Just a quick question: Is it possible to fit a normal multivariate linear mixed model either with nlme or lme4? Reference to an example would be very helpful! Thank you! _______________________________________________ R-sig-mixed-models at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-sig-mixed-models
Andrew Robinson Department of Mathematics and Statistics Tel: +61-3-8344-6410 University of Melbourne, VIC 3010 Australia Fax: +61-3-8344-4599 http://www.ms.unimelb.edu.au/~andrewpr http://blogs.mbs.edu/fishing-in-the-bay/