[R] anova.glm() and deviance/df
Prof Brian Ripley
ripley at stats.ox.ac.uk
Fri Jul 4 19:47:55 CEST 2003
On Fri, 4 Jul 2003, Henric Nilsson wrote:
> Is seems to me that R doesn't allow correct F-tests to be computed in anova.glm
> after estimating the dispersion parameter by deviance/df. Or does it?
It does when they are correct, e.g. for a Gaussian family.
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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