# NOT RUN {
library(survival)
fortify(survfit(Surv(time, status) ~ sex, data = lung))
fortify(survfit(Surv(time, status) ~ 1, data = lung))
fortify(survfit(coxph(Surv(time, status) ~ sex, data = lung)))
fortify(survfit(coxph(Surv(time, status) ~ 1, data = lung)))
# }
Run the code above in your browser using DataLab