Re: [R] command in survival package

From: Thomas Lumley <>
Date: Sat 21 Jan 2006 - 10:27:53 EST

On Fri, 20 Jan 2006, Linda Lei wrote:

> Hi there,
> I have a question about one command sentence when I follow the example
> in the book of "Survival analysis in S":
> > aml1<-aml[aml$group==1]

If this is really what the book says you should probably complain to the author. However, if it says

then you show type that instead.

It is hard to be sure, because you don't say where the `aml' data set comes from. It can't be the one in the survival package as this doesn't have a variable called "group"

> Thus, I couldn't keep going on the next command:

This looks implausible as well. I would have expected something like<-survfit(Surv(time,status)~1, data=aml1)

         -thomas mailing list PLEASE do read the posting guide! Received on Sat Jan 21 10:35:14 2006

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