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survex
2011 Jun 16
0
coxph: cumulative mortality hazard over time with associated confidence intervals
Dear R-users,
I computed a simple coxph model and plotted survival over time with
associated confidence intervals for 2 covariate levels (males and
females).
M1 <- coxph(survobject~sex, data=surv)
M1
survsex <- survfit(survobject~sex,data=surv)
summary(survsex)
plot(survsex, conf.int=T, col=c("black","red"), lty = c(1,2),
lwd=c(1,2), xlab="Time", ylab="Survival probability")
legend(10, 0.2, c("males","females"), col = c("black",&q...