arguments
Which is a nice change but still short of knowing what is going on.
Regards
Alex
-Original Message-
From: Prof Brian Ripley [mailto:[EMAIL PROTECTED]
Sent: June 15, 2005 4:24 PM
To: Hanke, Alex
Cc: 'r-help@stat.math.ethz.ch'
Subject: Re: [R] Error using newdata argument
Alex
-Original Message-
From: Prof Brian Ripley [mailto:[EMAIL PROTECTED]
Sent: June 15, 2005 4:24 PM
To: Hanke, Alex
Cc: 'r-help@stat.math.ethz.ch'
Subject: Re: [R] Error using newdata argument in survfit
You appear to have a coding for prior.f in newdata rather than the factor
@stat.math.ethz.ch'
Subject: Re: [R] Error using newdata argument in survfit
On Thu, 16 Jun 2005, Hanke, Alex wrote:
Hi Brian,
The factor Prior.f has 5 levels (1,2,3,4,5) which coxph deals with by
creating 4 dummy variables coded with 1 or zero. That's what I see when I
look at fit$x.
fit$x[1:5,]
Week
Dear R-helpers,
To get curves for a pseudo cohort other than the one centered at the mean of
the covariates, I have been trying to use the newdata argument to survfit
with no success. Here is my model statement, the newdata and the ensuing
error. What am I doing wrong?
summary(fit)
Call:
You appear to have a coding for prior.f in newdata rather than the factor
itself.
It's a bit hard to be sure when we don't have data8 to compare with.
On Wed, 15 Jun 2005, Hanke, Alex wrote:
Dear R-helpers,
To get curves for a pseudo cohort other than the one centered at the mean of
the
