Dear R-help list, I have a problem with the tick marks of a Kaplan-Meier survival plot. Here is a sample:
follow.up<-c(10,20,30,40,50,60,70,80,90,100) #months dead<-c(1,1,1,0,1,1,0,0,0,0) KM <-survfit(Surv(follow.up, dead)) plot(KM) The result is a nice plot. However, our research group thinks it may be a better idea to place the ticks to the years on the time scale, i.e. 0, 12, 24, 36 etc. months. Is this possible with R? I tried to look it up and the most relevant manual page was ?axis, option at - but I could not make this work together with the plot command. plot(KM, axis=axis(1, at=c(0,12,24,36))) #this does not what I wanted Any ideas? Thank you, Gabor ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
