[R] plotting survival curves

Terry Therneau therneau at mayo.edu
Fri Oct 26 16:00:45 CEST 2007

 You have  (unimportant lines omitted)
   > c2= survdiff(Surv(act.surv.time,censoring)~treatgrp ,data=b)
   > plot(c2)
 The problem is that you are using the wrong function.  It is survfit that 
creates plottable survival curves, survdiff only does the log-rank test.
 	Terry Therneau

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