maxb wrote:
Can someone help me. I am very new to R. I am fitting a Cox model using Frank
Harrell's cph as I want to produce a Nomogram. This is what I have done:
Srv<- Surv(time,cens)
f.cox<- cph(Srv~ v1+v2+v3+v4, x=T, y=T, surv=T)
This is not reproducible for us. Where are the data?
What is cph? I presume the one from package Design?
As soon as I press enter, Windows XP crashes. If I remove surv=T, then it
works. I have R version 2.9.0.
Have you updates all your packages? Which versions of survival and
Design are you using?
Is it really Windows that crashes, or just R?
See
http://cran.r-project.org/web/checks/check_results_Design.html
to learn that even the newest version of Design produces WARNINGs.
If you can send reproducible code to let R crash, please send it to the
package maintainer of the involved packages.
Best,
Uwe Ligges
Is there a way of displaying the parameter estimates (ie beta coefficients)
and HR when I type
anova(f.cox) as this only displays the Chi squared and p-values.
Any help or advise drawing a Nomogram will be appreciated.
Thanks in advance
Max
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