[R] How to extract z value from coxph
p.dalgaard at biostat.ku.dk
Wed Aug 4 19:55:03 CEST 2004
Thomas Lumley <tlumley at u.washington.edu> writes:
> > to build a linear classification model. Although the function outputs
> > the z value, but I can't access to it, so that I can write code to
> > extract them automatically and pass them to the next function. Can
> > someone help?
> Use the accessor functions:
> z <- coef(model)/sqrt(diag(vcov(model)))
> as for most regression models.
However (and sorry if I sound like a broken record) it would be nice
if summary.coxph, instead of just using cat(), returned an object ...
as most other regression models do.
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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