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On May 18, 2006, at 11:40 AM, Lusk, Jeffrey J wrote: > I'm still relatively new to R, so my apologies if this is covered > somewhere. I've been running some mixed-effect models in R using > lme{nlme}, but read in Faraway's recent book, Extending the Linear > Model > with R, that lmer in package lme4 is a much improved version. I tried > using this approach, but the output for the fixed effects doesn't > report > a p-value or the degrees of freedom (unlike the examples listed in > Faraway's book, which I tried and got the same incomplete output). > Any > idea how I can get the complete output? P-values for model coefficients are based on a Monte Carlo resampling using mcmcsamp. Do ?mcmcsamp. Results are best summarized with the summary function in the coda package. P-values for anova are done with stepwise model building anova(larger.model, smaller.model) > > In a related problem, I've been having trouble with the lines and > abline > in the graphics package. Occasionally, they fail to add the requested > line to the figure, but R doesn't return any error (it's as if > executing > the command does nothing). I've replicated this problem with code and > data directly from R texts such as Crawley's Statistics: An > Introduction > Using R, so I don't think it is operator error (but it could be). Any > ideas? Couldn't tell you without and example. Cheers, Hank > > Thanks, > > Jeff-- > ________________________________________________________ > > Jeffrey J. Lusk, Ph.D. > Postdoctoral Research Associate > Department of Forestry & Natural Resources > Purdue Climate Change Research Center > Purdue University > 715 West State Street; Pfendler Hall > West Lafayette, IN 47907 > Phone: 765-494-9701 > E-mail: [EMAIL PROTECTED] > Web: http://www.geocities.com/jefflusk2002 > > ______________________________________________ > 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 Dr. M. Hank H. Stevens, Assistant Professor 338 Pearson Hall Botany Department Miami University Oxford, OH 45056 Office: (513) 529-4206 Lab: (513) 529-4262 FAX: (513) 529-4243 http://www.cas.muohio.edu/~stevenmh/ http://www.muohio.edu/ecology/ http://www.muohio.edu/botany/ "E Pluribus Unum" ______________________________________________ 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