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fail_ns
2010 Dec 05
0
Help with time varying covariate-unfold function
...rying to use the unfold function in RcmdrPlugin.survival library,
which converts the survival data with time varying covariates to the
counting process notation. The problem is somehow, the event indicator
created is not correct.
Below is the data, I am trying to convert:
CASE TRT FAILTIME FAILCENS SEX AGE IGG0 IGG28 IGG42 IGG84 IGG364
26003 A 11.2033 2 1 43.9535 0 80 80
320 NA
IGG0 to IGG364 are my time varying covariates and FAILCENS = 2 indicates
observed times. So, when I tried to use,
igg2.long<-unfold(igg.2[3,],time="...
2002 May 17
0
options()$warn==2 and try()
...############ Start R session:
> library(survival)
> ## Here are 2 calls with different pairs of variables, both of which
yield warnings:
> qq <-
FitModels(vnames=c("acd11apcd3p","drpcd8p"),dframe="ALLmth12",survname="fail
tm12", censname="failcens")
Warning message:
Loglik converged before variable 2 ; beta may be infinite. in: fitter(X,
Y, strats, offset, init, control, weights = weights,
> ## warnings are just warnings when options()$warn=0:
> lapply(qq,class)
$cph.x1x2
[1] "coxph"
$cph.x1x2.int
[1] "coxph&...