r-help@stat.math.ethz.ch on Saturday, May 13, 2006 at 6:00 AM -0500 wrote: >> lme(biomass~age, random=~woods/age)?
Jörn Consult Pinheiro and Bates (2000, Mixed-effects models in S and S-Plus, Springer, ISBN 0-387-98957-0 ref 7 at http://www.r-project.org/doc/bib/R-books.html ) for how to fit more elaborate models, but two straightforward ones that might be adequate are lme( biomass~age, random=~1|woods ) and lme( biomass~age, random=~age|woods ) In the lme4 library corresponding syntax is lmer( biomass~age+(1|woods) ) and lmer( biomass~age+(age|woods) ) For vignettes on the lme4 library see the mlmRev library and @ARTICLE{Rnews:Bates:2005, AUTHOR = {Douglas Bates}, TITLE = {Fitting Linear Mixed Models in {R}}, JOURNAL = {R News}, YEAR = 2005, VOLUME = 5, NUMBER = 1, PAGES = {27--30}, MONTH = {May}, URL = {[ http://CRAN.R-project.org/doc/Rnews/ ]http://CRAN.R-project.org/doc/Rnews/} } alan -- Alan B. Cobo-Lewis, Ph.D. (207) 581-3840 tel Department of Psychology (207) 581-6128 fax University of Maine Orono, ME 04469-5742 [EMAIL PROTECTED] http://www.umaine.edu/visualperception ______________________________________________ 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
