2008/2/27, Lore Merdrignac <[EMAIL PROTECTED]>:
>
> Hi,
> I have already posted a first problem of "NO_CONVERSION" with the package
> SURVIVAL. But I still have a problem by using the function survfit() of the
> package.
> Here is the code :
>
> >>> from rpy import *
> >>> r.library("survival")
> >>> set_default_mode(NO_CONVERSION)
> >>> d=r.rep(1,41)
> >>> t=r.c( r.rep(6,5), r.rep(9,3) , r.rep(12,24), r.rep(15,9) )
> >>> r.plot(r.survfit(r.Surv(t,d)))
> Traceback (most recent call last):
> File "<interactive input>", line 1, in ?
> RPy_RException: Erreur dans parse(text = paste(deparse(call[[2]]), 1, sep =
> "~")) :
> unexpected numeric constant dans :
> "structure(c(6L, 6L, 6L, 6L, 6L, 9L, 9L, 9L, 12L, 12L, 12L, 12L, ~1
> 12L"
>
> Is there anything I am doing wrong ? I really need this function to
> complete my survival analysis... I would really appreciate if anyone could
> help me.
I guess that an emergency solution is to be doing the whole analysis in R.
Otherwise, you could try splitting up a bit your expression
r.plot(r.survfit(r.Surv(t,d)))
to see better were things are going wrong:
s = r.Surv(t,d)
sf = r.survfit(s)
plot(sf)
The following has a chance to work (not tested):
survPlot = r.get("plot.survfit", envir=r.getNamespace("survival"))
survPlot(sf)
L.
PS: An alternative to the NO_CONVERSION business might be coming in not-so-long.
> Thanks.
>
> Lore.
>
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