[R] Variance components from lm?
andy_liaw at merck.com
Fri Jul 15 02:47:21 CEST 2005
> From: Spencer Graves
> Under normal circumstances, 'RSiteSearch("variance
> would likely identify "lme" in package nlme and lmer in
> package lme4. I
> recommend lme, as it comes with a fairly complete set of helper
> functions described in Pinheiro and Bates (2000) Mixed-Effect
> Models in
> S and S-Plus (Springer). "lmer" is Doug Bates' next
> generation product
> currently under development and lacking some of the helper functions
> available with lme.
> spencer graves
> p.s. I said, "Under normal circumstances", because when I tried
> RSiteSearch just now, it didn't work. When I went to
> "www.r-project.org" -> Search -> "R site search", I got "Computer
> trouble, July 13, 2005". When it works (which is 99.7% of
> the time), it
> is my favorite tool for finding things about R for which I
> don't already
> know where to look.
The server (graciously created and maintained by Prof. Jonathan Baron)
crashed and a hard drive failure. I was told it would likely be
back online next Monday.
I missed this search engine, too, as I've grown to depend on it quite
> Steve Ellison wrote:
> > I often use simple nested random-effect models for
> interlaboratory data.
> > The variance components are important things to know.
> > Is there an R function or package that gets variance
> components from lm
> > objects? Or can someone point me to a method of doing so?
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> Graves, PhD
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