On Mon, 20 Oct 2008, A Van Dyke wrote:
I am trying to plot survival curves using the following code as an example:
rs1799964.coxph<-(coxph(Surv(sassurvmonths,status)~age+stage+rs1799964_TNFA,method="efron"))
plot(rs1799964.coxph,lyt=c(1,3),xlab="Survival in Months",ylab="Proportion
Surviving")
You can't plot a coxph object. You probably want
plot(survfit(rs1799965.copxh))
-thomas
I am gettingthe following error message:
Error in xy.coords(x, y, xlabel, ylabel, log) :
'x' and 'y' lengths differ
Any input to debugging this matter would be greatly appreciated. Thank you
in advance.
-Alison
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Thomas Lumley Assoc. Professor, Biostatistics
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