[R] sm library

Prof Brian D Ripley ripley at stats.ox.ac.uk
Tue Dec 19 21:23:41 CET 2000

On Tue, 19 Dec 2000, Oscar wrote:

> Hello to everyone
> Does someone know where is the bug in sm.logit function in sm library?
> The estimated probabilities are always 1/2
> I'm new to this list, so I don't know if this list is about this kind of things.

Please look in the archives, as I posted the solution a day or so ago.
The bug is that glm.fit has been broken since that function was ported to
R, and now gives linear predictor 0 for weight-zero cases, incorrectly.

The best solution is to get the new sm2 package, on its way to CRAN now.
You can pick up a version from
http://www.stats.ox.ac.uk/pub/R/sm_2.0-1.tar.gz or a Windows port at
http://www.stats.ox.ac.uk/pub/RWin/sm.zip (for rw1020), both as from about
five minutes ago.

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 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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