? layout() ? par() E.g.,
layout(matrix(c(1,2,3),1,3,byrow=TRUE) #3 plots side-by-side Then use plot() three times to generate each of your graphs. At 11:14 PM 5/2/2007, Greg wrote: >I should clarify. I can generate plots for each category individually but >not for all three on the same chart. > >Greg > >-----Original Message----- >From: Gregory Pierce [mailto:[EMAIL PROTECTED] >Sent: Wednesday, May 02, 2007 10:21 PM >To: 'r-help@stat.math.ethz.ch' >Subject: Survival statistics--displaying multiple plots > >Hello all! > >I am once again analyzing patient survival data with chronic liver disease. > >The severity of the liver disease is given by a number which is continuously >variable. I have referred to this number as "meld"--model for end stage >liver disease--which is the result of a mathematical calculation on >underlying laboratory values. So, for example, I can generate a Kaplan-Meier >plot of patients undergoing a TIPS procedure with the following: > > >plot(survfit(Surv(days,status==1),subset(tips,meld<10)) > >where "tips" is my data set, "days" is the number of days alive, and meld is >the meld score. > >What I would like to do is display the survival graphs of patients with >meld<10, 10<meld<20, and meld>20. I am unsure about how to go about this. > >Any suggestions would be appreciated. ================================================================ Robert A. LaBudde, PhD, PAS, Dpl. ACAFS e-mail: [EMAIL PROTECTED] Least Cost Formulations, Ltd. URL: http://lcfltd.com/ 824 Timberlake Drive Tel: 757-467-0954 Virginia Beach, VA 23464-3239 Fax: 757-467-2947 "Vere scire est per causas scire" ______________________________________________ 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.