[R] Convert SAS code to R code about survival analysis

[Paul Hiemstra]

 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
>
>
>
> --
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> Sent from the R help mailing list archive at Nabble.com.
>
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-- 
Paul Hiemstra, Ph.D.
Global Climate Division
Royal Netherlands Meteorological Institute (KNMI)
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