[R] Random factor ANOVA, Repeated measures ANOVA, Within subjects designs.

Prof Brian Ripley ripley at stats.ox.ac.uk
Fri Oct 13 16:55:48 CEST 2000

On Fri, 13 Oct 2000, Volker Franz wrote:

> Hi,
> we are just about to evaluate R as a standard statistics package for
> our institute. We looked around the help - manual, the FAQ, etc. and
> did not find anything for the topics of random factors in ANOVA,
> repeated measures in ANOVA, or within subjects designs in R.
> Could anyone point us to any information concerning
>    - univariate approach to repeated measures anova
>    - multivariate approach to repeated measures anova
>    - mixed designs
>    - Greenhouse-Geisser epsilon correction
>    - Newman-Keuls contrasts
>    - LSR contrasts
>    - Tukey contrasts
>    - Scheffe contrasts
> Any help or comment appreciated.

Well, the last four are methods for multiple comparisons, not themselves
contrasts!   R is a tool within which all of these can be done and
most have been, but it is not a `standard statistics package' and
it does not come pre-packaged for particular fields.

Try looking at the help for aov and the references to its S antecedent.
It's much more powerful than `aov' might suggest to a non-statistician.

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)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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