Re: [R] Conservative "ANOVA tables" in lmer

From: Andrew Robinson <>
Date: Sun 10 Sep 2006 - 05:56:24 GMT

On Thu, Sep 07, 2006 at 07:59:58AM -0500, Douglas Bates wrote:

> I would be happy to re-institute p-values for fixed effects in the
> summary and anova methods for lmer objects using a denominator degrees
> of freedom based on the trace of the hat matrix or the rank of Z:X if
> others will volunteer to respond to the "these answers are obviously
> wrong because they don't agree with <whatever> and the idiot who wrote
> this software should be thrashed to within an inch of his life"
> messages. I don't have the patience.

This seems to be more than fair to me. I'll volunteer to help explain why the anova.lmer() output doesn't match SAS, etc. Is it worth putting a caveat in the output and the help files? Is it even worth writing a FAQ about this?



Andrew Robinson  
Department of Mathematics and Statistics            Tel: +61-3-8344-9763
University of Melbourne, VIC 3010 Australia         Fax: +61-3-8344-4599

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Received on Sun Sep 10 17:14:37 2006

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