km {mets} | R Documentation |
Kaplan-Meier with robust standard errors
Description
Kaplan-Meier with robust standard errors Robust variance is default variance and obtained from the predict call
Usage
km(formula, data = data, ...)
Arguments
formula |
formula with 'Surv' 'Event' outcome |
data |
data frame |
... |
Additional arguments to phreg |
Author(s)
Thomas Scheike
Examples
library(mets)
data(sTRACE)
sTRACE$cluster <- sample(1:100,500,replace=TRUE)
out1 <- km(Surv(time,status==9)~strata(vf,chf),data=sTRACE)
out2 <- km(Surv(time,status==9)~strata(vf,chf)+cluster(cluster),data=sTRACE)
summary(out1,times=1:3)
summary(out2,times=1:3)
par(mfrow=c(1,2))
plot(out1,se=TRUE)
plot(out2,se=TRUE)
[Package mets version 1.3.6 Index]