Thank you very much for the answer. I have seen very often the number of subject at risk on survival graph (see my pdf file). It is very easy to plot the curve with geom_step(), but is there a better way to show the number of subjects at risk at each time ?
Thank you for your advice. 2008/11/14 hadley wickham <[EMAIL PROTECTED]> > Hi David, > > > I'm trying to learn how to make a plot with the amazing package ggplot2. > > > > I was wondering if it was possible to draw 2 (or more) x (or y) axis in > the > > same graph. For example : > > - I want to show two informations at each x coordinate : a survival > curve, > > I want to show the time (0, 12 and 24 months) and the number of subject > at > > risk at each time. > > - I want to draw two curves that don't have the same unit > > Unfortunately, the capability is currently unavailable in ggplot2 and > is unlikely to ever be available because I believe it is a > fundamentally inaccurate means of presenting data. However, in the > next version it will be much easier to created faceted displays with > varying scales, which should be a better solution for many of these > types of problems. > > Regards, > > Hadley > > -- > http://had.co.nz/ >
surv.pdf
Description: Adobe PDF document
______________________________________________ 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.
