[R] logistic regression
Peter Dalgaard BSA
p.dalgaard at biostat.ku.dk
Fri Mar 14 20:09:40 CET 2003
Thomas Lumley <tlumley at u.washington.edu> writes:
> On 14 Mar 2003, Peter Dalgaard BSA wrote:
> > Frank E Harrell Jr <fharrell at virginia.edu> writes:
> > > If you have no more than one continuous variable you can pre-process
> > > (outside of R) to collapse the data into frequency counts. I did not
> > > check to see if glm handles frequency case weights. The lrm function
> > > in the Design package
> > > (http://hesweb1.med.virginia.edu/biostat/s/Design.html) does.
> > glm can have a matrix (cbind(success,failure)) as response.
> Or case weights.
Right. (And actually explained on p.194 in my own book too! I just got
myself confused over whether it would check for non 0-1 responses.)
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
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