[R] aov documentation page: question
Prof Brian Ripley
ripley at stats.ox.ac.uk
Mon Oct 25 14:59:06 CEST 2004
On Mon, 25 Oct 2004, AJ Smit wrote:
> I was looking at the aov documentation page and came across the
> following which seems like a contradiction to me:
> " This provides a wrapper to |lm| for fitting linear models to balanced
> or unbalanced experimental designs." (I presume 'This' refers to aov)
> "|aov| is designed for balanced designs, and the results can be hard to
> interpret without balance"
and that is part of a Note, not even a whole sentence of it. In
particular, the note has extra force for the multistratum designs
> So, do I use it for unbalanced designs?
You _can_ use it, but the results _can_ be hard to interpret. That is not
a `contradiction' -- perhaps you need to consult your dictionary? You may
do better to use something else, like lme(), hence the `Note'.
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 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
More information about the R-help