[R]: performing marginal tests to glm objects

Prof Brian Ripley ripley at stats.ox.ac.uk
Thu Jul 24 12:11:40 CEST 2003

?drop1 for the valid marginal tests.

If you want `type III' tests (which aren't marginal in the usual sense) 
see Anova in package car, which also does `type II' tests (as performed by 

On Thu, 24 Jul 2003, Eve Corda wrote:

> I wonder if it is possible to obtain marginal tests for effects in
> generalized linear models. Indeed, the anova function produces
> sequential tests and it doesn't have any "type" argument to specify that
> we would like marginal tests instead, as in the similar anova function
> for lme objects.

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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