Sandra, As far as I am aware, you will have to use a parametric model (survreg) if your survival times are interval-censored.
Regards, -Cody Cody Hamilton Edwards Lifesciences -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Sandra Ellis Sent: Wednesday, July 11, 2007 7:11 AM To: r-help@stat.math.ethz.ch Subject: [R] survfit for interval censored data <p>Hello,</p><p>I am a new R-user and would like to use survfit for interval censored data. Whenever I try I get an error message that states I can only use survfit for right censored or counting process data. I was wondering if anyone knows if there is an additional package available that can calculate KM curves for interval censored data, or another program with this capability?</p><p>Thank you.</p><p>S. Ellis (student)</p> ______________________________________________ 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. ______________________________________________ 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.
