>>>>> "HaroldD" == Doran, Harold <[EMAIL PROTECTED]> >>>>> on Wed, 8 Feb 2006 08:01:03 -0500 writes:
HaroldD> ................ HaroldD> A few thoughts, first, use lmer in the Matrix HaroldD> package and not in lme4. Well, that's potentially misleading advice: If both lme4 and Matrix are (more or less) current, it is actually better to call library(lme4) if you want to use lmer() . A more extensive advice + explanation : - "lme4" is the package you should use when using lmer(). Using "Matrix" *instead* works as well *currently* (and yes, *currently* lmer is in the Matrix namespace). - At the moment, "lme4" is an almost empty wrapper around using package "Matrix", since the C code for lmer() needs to be able to call C code inside "Matrix" and that is not yet portably possible. For that reason, everything for lmer() is currently inside "Matrix", but that should change when R will have the infrastructure for R packages to export their C API such that other R packages can reliably use that C API. HaroldD> ................ HaroldD> Last, a colleague and I have a paper in press HaroldD> showing how to fit models using lme which we HaroldD> submitted a year or so ago. HaroldD> Since lme has evolved to lmer, we created an HaroldD> appendix that translates all of our lme models to HaroldD> the lmer syntax so readers can see equivalences. I HaroldD> am happy to send this to you (or others) upon request. That sounds quite interesting; I'll be glad to receive it as well. Martin Maechler, ETH Zurich HaroldD> http://cran.r-project.org/doc/Rnews/Rnews_2005-1.pdf HaroldD> Harold ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html