我已经定义了start.time = 2和xlim = c(2,10)。但是我不明白为什么两年前没有一条平线。其实没有event_years
谢谢!
event_censor <- c(rep(0,15),1,0)
event_years <- c(10,10,2.37,5.87,5.80,6.67,5.71,2.01,2.30,3.19,8.75,2.61)
test.df<-as.data.frame(cbind(event_censor,event_years))
ggsurvplot(survfit(Surv(event_years,event_censor) ~ 1,data = test.df,start.time=2 ),fun = "event",xlim = c(2,10),break.x.by = 1)