[R] Forward stepwise LOGISTIC regression

Prof Brian Ripley ripley at stats.ox.ac.uk
Tue Dec 16 16:01:00 CET 2003

On Tue, 16 Dec 2003, Karl Knoblick wrote:

> Does anybody know how to do a forward stepwise
> LOGISTIC regression? 
> (I found lrm(), fastbw() and validate() in the Design
> package concerning backward logistic regression - but
> no forward)

Try using R itself: glm + step.


found both of those, so how come *you* failed to?

I'll not comment on how bad an idea this would be, as maybe you just wish 
to illustrate that.

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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