Hello all.
I've been attempting to utilize the "survival" pkg (
http://cran.r-project.org/web/packages/survival/index.html), while reading
through this guide (http://www.ms.uky.edu/~mai/Rsurv.pdf). I figured working
through the guide would be the best way to go, before attempting my own
data.
I tried to utilize the Kaplain-Meier estimator as shown in the guide:
summary(survfit(Surv(aml$time[1:11],aml$status[1:11])))
This, however, returns the error:
Error in survfit(Surv(aml$time[1:11], aml$status[1:11])) :
Survfit requires a formula or a coxph fit as the first argument
Obviously the first thing that throws me is that apparently the package's
guide doesn't actually work with the package. That seems a glaring
oversight, so my first thought is obviously that I've missed
a setting somewhere.
I then tried to provide a function for survfit, as requested, but I could no
x-axis variable for the function (assuming Surv[] is the response variable)
that would make it work.
Any ideas/suggestions?
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
