Re: [R] Incomplete Output from lmer{lme4}

From: Martin Henry H. Stevens <HStevens_at_muohio.edu>
Date: Fri 19 May 2006 - 01:59:43 EST

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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: jjlusk@purdue.edu
> Web: http://www.geocities.com/jefflusk2002
>
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Dr. M. Hank H. Stevens, Assistant Professor 338 Pearson Hall
Botany Department
Miami University
Oxford, OH 45056

Office: (513) 529-4206
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http://www.cas.muohio.edu/~stevenmh/
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http://www.muohio.edu/botany/

"E Pluribus Unum"

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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Fri May 19 02:12:27 2006

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