Re: [R] Variance components from lm?

From: Spencer Graves <>
Date: Fri 15 Jul 2005 - 10:07:11 EST

          Under normal circumstances, 'RSiteSearch("variance components")' 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 "" -> 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.

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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Spencer Graves, PhD
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