Date: Mon, 18 Nov 2002 08:30:59 -0500
Reply-To: "Chakravarthy, Venky" <Venky.Chakravarthy@PFIZER.COM>
Sender: "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From: "Chakravarthy, Venky" <Venky.Chakravarthy@PFIZER.COM>
Subject: Re: PROC LIFETEST
Content-Type: text/plain; charset="iso-8859-1"
For Question number 2, your guess is correct. Use ODS to output the
ProductLimitEstimates from LIFETEST. Then use PROC GPLOT with annotate to
get the CI placed where you need it. Take a look at Joanne C. Zhou's SUGI 27
paper 231-27. I found this very useful.
From: Alex Cavallo [mailto:acavallo@LEXECON.COM]
Sent: Friday, November 15, 2002 12:33 PM
Subject: PROC LIFETEST
1. How do I redirect graphics output from PROC LIFETEST PLOTS= statement
to a postscript file? I tried using FILENAME GSASFILE 'kmsamp ps'; but it
did not work.
2. I want to produce KM plots with confidence intervals. I don't see how
to do this with LIFETEST. Do I need to output the survival data and then
use PROC GPLOT?
a. Should I connect the CI lines using the INTERPOL=STEPJ option in
the SYMBOL definition?
b. What does it mean to have missing CI for a particular point?
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