library(survival)
library(survminer)
## Loading required package: ggplot2
## Loading required package: ggpubr
## 
## Attaching package: 'survminer'
## The following object is masked from 'package:survival':
## 
##     myeloma
d1= data.frame(time= c(2,4,6,10),event=c(1,0,1,1))
kmc=with(d1,Surv(time,event));kmc
## [1]  2   4+  6  10
plot(kmc)

plot(kmc,fun="cumhaz")