Søren Højsgaard <[EMAIL PROTECTED]> writes: > Dear all, > In the SASmixed package there is an example of an analysis of a split-plot > experiment. The model is > > fm1Semi <- lme( resistance ~ ET * position, data = Semiconductor, random = ~ 1 | > Grp) > > where Grp in the Semiconductor dataset is defined as ET*Wafer. Is it possible to > specify the grouping directly some way, e.g. like > > fm1Semi <- lme( resistance ~ ET * position, data = Semiconductor, random = ~ 1 | > ET*Wafer)
Actually that does work with lme from the as-yet-unreleased version 0.6-1 of the lme4 package. See the slides from my presentation at useR!2004 http://www.ci.tuwien.ac.at/Conferences/useR-2004/Keynotes/Bates.pdf I'm back at my home now and will endeavor to get lme4_0.6-1 released as soon as possible. -- Douglas Bates [EMAIL PROTECTED] Statistics Department 608/262-2598 University of Wisconsin - Madison http://www.stat.wisc.edu/~bates/ ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
