do appear per request in the summary output.
Terry T.
On 06/28/2014 05:00 AM, r-help-requ...@r-project.org wrote:
> Message: 9
> Date: Fri, 27 Jun 2014 12:39:29 -0700
> To:"r-help@r-project.org"
> Subject: [R] standard error of survfit.coxph()
> Message-ID:
> <140
elp-requ...@r-project.org wrote:
> Message: 9
> Date: Fri, 27 Jun 2014 12:39:29 -0700
> To:"r-help@r-project.org"
> Subject: [R] standard error of survfit.coxph()
> Message-ID:
> <1403897969.91269.yahoomail...@web122906.mail.ne1.yahoo.com>
> Content-Typ
14 05:00 AM, r-help-requ...@r-project.org wrote:
> Message: 9
> Date: Fri, 27 Jun 2014 12:39:29 -0700
> To:"r-help@r-project.org"
> Subject: [R] standard error of survfit.coxph()
> Message-ID:
> <1403897969.91269.yahoomail...@web122906.mail.ne1.yahoo.com>
> Co
elp-requ...@r-project.org wrote:
> Message: 9
> Date: Fri, 27 Jun 2014 12:39:29 -0700
> To:"r-help@r-project.org"
> Subject: [R] standard error of survfit.coxph()
> Message-ID:
> <1403897969.91269.yahoomail...@web122906.mail.ne1.yahoo.com>
> Content
ear per request in the summary output.
Terry T.
On 06/28/2014 05:00 AM, r-help-requ...@r-project.org wrote:
Message: 9
Date: Fri, 27 Jun 2014 12:39:29 -0700
From: array chip
To:"r-help@r-project.org"
Subject: [R] standard error of survfit.coxph()
Message-ID:
<1403897969.
Hi, can anyone help me to understand the standard errors printed in the output
of survfit.coxph()?
time<-sample(1:15,100,replace=T)
status<-as.numeric(runif(100,0,1)<0.2)
x<-rnorm(100,10,2)
fit<-coxph(Surv(time,status)~x)
### method 1
survfit(fit, newdata=data.frame(time=time,status=status
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