[R] fixed variance of lmer object

[Prof Brian Ripley]

On Sat, 4 Mar 2006, Johannes Hüsing wrote:

> Martin Maechler <maechler at stat.math.ethz.ch> [Fri, Mar 03, 2006 at 05:38:52PM CET]:
>>>>>>> "Johannes" == Johannes Hüsing <hannes at ruhrau.de>
>>>>>>>     on Wed, 1 Mar 2006 21:01:39 +0100 writes:
>>
>>     Johannes> Dear expRts,
>>     Johannes> could anybody nudge me toward some documentation about how to
>>     Johannes> extract the variance-covariance matrix of the fixed parameters
>>     Johannes> from an lmer object?
>>
>>   vcov( . )
>
> thank you! I just found it out myself by looking at
> https://svn.r-project.org/R-packages/trunk/Matrix/R/lmer.R.
>
>>
>> as ``for all good objects ''  :-)
>>
>
> Which brings me back to the core of my question: Where was I supposed
> to find this piece of information myself. The logical place, in my
> opinion, would be Section 11.3 of "An Introduction to R". Am I missing
> something here? If desired, I can write a patch for R-intro.texi.

In Venables & Ripley (1994-2002), whose invention this was.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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