Dear all, I'm using the "survival" package with R 2.4.0 on Mac OS X 10.4.8.
I have two core statistics books (one of which is Altman's medical stats book) which suggest showing the number of individuals at risk at different time intervals on the Kaplan-Meier curve. My plot shows two curves that later cross, because of one significant outlier. I have two queries: Is there an easy way of displaying number of individuals at risk at a specific time interval? Is there a way to stop plotting when the number of individuals at risk reaches a certain minimum threshold to reduce the risk of such an outlier problem? If there is no easy solution, then I suppose I shall have to perform the logic myself, calculating when individuals "drop out", and overlaying that onto the plot? Many thanks, Mark -- Specialist Registrar and Clinical Research Fellow, Department of Neurology, Cardiff University, UK ______________________________________________ R-help@stat.math.ethz.ch 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.