I am having a problem with the censor tick marks with plot and prodlim I am using the example code from ?prodlim but I have added mark.time=T to the plot command to get tick marks at censor times. The problem is the tick marks occur at exactly the same point in each of the arms. This seems wrong as the censorings do not occur at the same times in each arm.
pfit.edema <- prodlim(Surv(time,status)~edema,data=pbc) summary(pfit.edema) summary(pfit.edema,intervals=TRUE) plot(pfit.edema,mark.time=T) Here is my sessionInfo R version 2.9.0 (2009-04-17) i386-pc-mingw32 locale: LC_COLLATE=English_United Kingdom.1252;LC_CTYPE=English_United Kingdom.1252;LC_MONETARY=English_United Kingdom.1252;LC_NUMERIC=C;LC_TIME=English_United Kingdom.1252 attached base packages: [1] splines stats graphics grDevices utils datasets methods [8] base other attached packages: [1] prodlim_1.0.5 survival_2.35-7 KernSmooth_2.22-22 many many thanks to anyone who can spot my error -- View this message in context: http://n4.nabble.com/prodlim-problem-with-censor-ticks-in-stratified-KM-plot-tp955433p955433.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
