[R] fastbw() in Design works for continuous variable?
Frank E Harrell Jr
f.harrell at vanderbilt.edu
Thu Feb 21 01:18:16 CET 2008
array chip wrote:
> Hi, it seems that the fastbw() in the Design package
> only works with variable of class "factor" according
> to the help page if I understand correctly. Is there
> any R function/package that do stepwise variable
> selection for a Cox model with continuous independent
> variables?
Yes it works. "Factor" was not a good choice of words in the documentation.
Frank
>
> Thank you
>
> John
>
>
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--
Frank E Harrell Jr Professor and Chair School of Medicine
Department of Biostatistics Vanderbilt University
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