[R] lme vs. lmer, how do they differ?

2010-09-10 Thread John Sorkin
windows Vista R 2.10.1 What is the difference (or differences) between lme and lmer? Both appear to perform mixed effects regression analyses. Thanks John John David Sorkin M.D., Ph.D. Chief, Biostatistics and Informatics University of Maryland School of Medicine Division of Gerontology

Re: [R] lme vs. lmer, how do they differ?

2010-09-10 Thread S Ellison
John Sorkin jsor...@grecc.umaryland.edu 10/09/2010 13:21:09 What is the difference (or differences) between lme and lmer? Both appear to perform mixed effects regression analyses. From a user's point of view: - lme only accepts nested random effect; lmer handles crossed random effects - lme has

Re: [R] lme vs. lmer, how do they differ?

2010-09-10 Thread Ben Bolker
John Sorkin jsorkin at grecc.umaryland.edu writes: windows Vista R 2.10.1 What is the difference (or differences) between lme and lmer? Both appear to perform mixed effects regression analyses. Thanks John in a nutshell: lmer is newer, much faster, handles crossed random