----- Original Message ----- From: "Thomas Lumley" <[EMAIL PROTECTED]> To: "Chao Zhu" <[EMAIL PROTECTED]> Cc: <[email protected]> Sent: Thursday, March 31, 2005 11:09 AM Subject: Re: [R] Cox model qustion in R
> On Wed, 30 Mar 2005, Chao Zhu wrote: >> >> But it only gives me the curve with combined treatment. How do I get a >> plot with two curves for different treatments. I don't want to do >> new<-data.frame(treat=c(0,1)) and plot(survfit(fit,newdata=new)) >> cause it gives you predicted curves for two treatments. >> > > I think you are going to have to be clearer about what you want. If you > want the Kaplan--Meier estimator for each treatment separately then > plot(survfit(Surv(t)~treat)) > will do it. Otherwise I don't know what you're trying to do. > > By the way, do you really have no censoring in the time variable? > > -thomas > > ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
