On Sat, Oct 09, 2004 at 09:03:23AM +0800, Neil Leonard
wrote:> I think this is a pretty basic statistic question:
>
> If I have a variable which has 4 factors how can I add it to a coxph
> model? I have other variables added which have digits 1-4 instead of
> four factors. If I recode the variable will that work?
?factor
?as.factor
>
>
> Thanks
> Neil
>
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