tag:blogger.com,1999:blog-1275149608391671670.post1194839735491906510..comments2023-09-28T06:13:40.704-04:00Comments on SAS and R: Example 7.38: Kaplan-Meier survival estimatesKen Kleinmanhttp://www.blogger.com/profile/09525118721291529157noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-1275149608391671670.post-69018454721884766032017-04-23T09:50:11.461-04:002017-04-23T09:50:11.461-04:00Fixed! Thanks for pointing this out.Fixed! Thanks for pointing this out.Nick Hortonhttps://www.blogger.com/profile/00242216324355342047noreply@blogger.comtag:blogger.com,1999:blog-1275149608391671670.post-56612118008807804822017-04-20T09:44:28.892-04:002017-04-20T09:44:28.892-04:00in the R example you forgot to define the data.fra...in the R example you forgot to define the data.frame "ds" before to use survfit(...)Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1275149608391671670.post-32475875741257197502016-03-11T07:57:40.890-05:002016-03-11T07:57:40.890-05:00Thanks for that. If you compare the n.risk at a pa...Thanks for that. If you compare the n.risk at a particular time from the R output to the number left at a particular time from SAS, the two do not match. I am currently validating similar output from SAS using R, is there any way to make the R n.risk match the SAS number left, from within the survfit function in R? Thanks. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1275149608391671670.post-30218521343966147402013-12-06T03:01:11.760-05:002013-12-06T03:01:11.760-05:00Great, much easier to understand. thanks!
Great, much easier to understand. thanks!<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1275149608391671670.post-44360152780890533712013-09-22T16:48:28.774-04:002013-09-22T16:48:28.774-04:00Kudos to Giles Crane for pointing out that R can a...Kudos to Giles Crane for pointing out that R can also compute quantiles, and confidence limits, of survival curves.<br />The quantile function has a method for survfit objects of the survival package:<br /><br />quantile( survfit( fit), c(0.25, 0.50, 0.75) )<br /><br />NickNick Hortonhttps://www.blogger.com/profile/00242216324355342047noreply@blogger.comtag:blogger.com,1999:blog-1275149608391671670.post-45606889810451645562012-06-19T16:32:15.605-04:002012-06-19T16:32:15.605-04:00Thank you! You made this so easy to get started.Thank you! You made this so easy to get started.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1275149608391671670.post-69788497141384392812011-12-05T12:12:25.076-05:002011-12-05T12:12:25.076-05:00awesome thanks!!awesome thanks!!Anonymousnoreply@blogger.com