[R] Dots in models formulae

[Prof Brian Ripley]

On Tue, 16 Aug 2005, Gavin Simpson wrote:

> I still can't find this documented for a formula (I found
> update.formula, but the meaning of "." is different there, slightly, as
> you indicate) - but it must be as I didn't imagine seeing it - or maybe
> I did...

It _is_ in `An Introduction to R', both for lm() and update.formula(). 
Since this meaning does depend on using terms.formula(), it is on that 
functions' help page.

-- 
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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