Hi, I am working on transforming a SAS code to R code. It's about the survival analysis and the SAS code is as below: -------------------------------------- proc lifetest data=surdata plot=(s); time surv*censht(1); strata educ; title 'Day 1 homework'; run; ---------------------------------------- here is the data: subject surv censht educ 1 78 1 1 2 70 1 0 3 60 0 1 4 50 1 1 5 90 0 1 . . . . . . . . . . . . 100 50 1 0 -------------------------------- In the dataset, 'subject' is suject ID, 'surv' is the survival time, 'censht' is the indicator of censor, 'educ' is the strata variable indicating the education status. How convert such SAS codes to R code? thank you very much, karena -- View this message in context: http://r.789695.n4.nabble.com/Convert-SAS-code-to-R-code-about-survival-analysis-tp3594657p3594657.html Sent from the R help mailing list archive at Nabble.com.
Paul Hiemstra
2011-Jun-14 07:59 UTC
[R] Convert SAS code to R code about survival analysis
Dear Karena, Your title in the SAS analysis suggests this is homework related to some course. If this is true, please refer to your tutor for these kinds of questions, this mailing is list is not meant for these kinds of questions [1]. For survival analysis in R, the CRAN task view for that topic is a good place to start [2]. regards, Paul [1] http://www.R-project.org/posting-guide.html [2] http://cran.r-project.org/web/views/Survival.html On 06/13/2011 07:39 PM, karena wrote:> Hi, I am working on transforming a SAS code to R code. > > It's about the survival analysis and the SAS code is as below: > -------------------------------------- > proc lifetest data=surdata plot=(s); > time surv*censht(1); > strata educ; > title 'Day 1 homework'; > run; > ---------------------------------------- > > here is the data: > subject surv censht educ > 1 78 1 1 > 2 70 1 0 > 3 60 0 1 > 4 50 1 1 > 5 90 0 1 > . . . . > . . . . > . . . . > 100 50 1 0 > -------------------------------- > > In the dataset, 'subject' is suject ID, 'surv' is the survival time, > 'censht' is the indicator of censor, 'educ' is the strata variable > indicating the education status. > > How convert such SAS codes to R code? > > thank you very much, > > karena > > > > -- > View this message in context: http://r.789695.n4.nabble.com/Convert-SAS-code-to-R-code-about-survival-analysis-tp3594657p3594657.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help at r-project.org 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.-- Paul Hiemstra, Ph.D. Global Climate Division Royal Netherlands Meteorological Institute (KNMI) Wilhelminalaan 10 | 3732 GK | De Bilt | Kamer B 3.39 P.O. Box 201 | 3730 AE | De Bilt tel: +31 30 2206 494 http://intamap.geo.uu.nl/~paul http://nl.linkedin.com/pub/paul-hiemstra/20/30b/770