11.7 Kaplan-Meier survival curve in R

• K-M curves can be computed using the survfit() function within the R survival library. Here time corresponds to $y_i$, the time to the $i$th event (either censoring or death).

fit.surv <- survfit(Surv(time, status) ~ 1, data = BrainCancer)
plot(fit.surv, xlab = "Months",
    ylab = "Estimated Probability of Survival")