Kaplan-Meier survfit problem
On Dec 10, 2011, at 6:39 PM, capitantyler wrote:
done it, again, i have the next problem my traduction: "The object (list) cannot be corced as "double" Original: *km1 <- survfit(Surv(as.numeric(T.201110))~1)* Error en Surv(as.numeric(T.201110)) : el objeto (list) no puede ser coercionado a 'double'
I do not read that language, but I am surprised to see a single vector being used as an argument to Surv(). When I use Surv(. , .) it is with two vectors, an interval and a censor variable.
note that need it convert to numeric class, otherwise: *km1 <- survfit(Surv((T.201110))~1)* Error en Surv((T.201110)) : Time variable is not numeric -- View this message in context: http://r.789695.n4.nabble.com/Kaplan-Meier-survfit-problem-tp2015369p4181476.html
Context? Yes. We do want context, but we don't want to go to no steenking Nabble.
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Arrrgh. The rhelp mailing list is NOT at Nabble. Nabbel si a commercial mirror of the real thing. And it isn't really an archive. either, since they start discarding posts after a year or two.
David Winsemius, MD West Hartford, CT