[R] adding variable
Prof Brian Ripley
ripley at stats.ox.ac.uk
Tue Nov 18 19:32:28 CET 2003
On Tue, 18 Nov 2003, Martin Wegmann wrote:
> I have count data of animals (here y, y1, y2...) and env. variables (x, x1,
> x2 ,....).
> I used a glm
> and now I would like to add the count data of other species to investigate if
> they might have a bigger impact than the env. variables:
> #x? are the selected var from the first glm run
> I wonder if there is a more elegant method to do this than adding (and
> removing) each y by hand.
Do you mean each x? In either case, see ?update.
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
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