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require(survival, quietly = TRUE)
args <- commandArgs(trailingOnly = TRUE)

input = args[1]
type = args[2]
error = args[3]
conf_type = args[4]
conf_lower = args[5]
fit = args[6]
png = args[7]

tofit <- survival::survfit(Surv(obsT, status) ~ X1, type = type, error = error, conf.type = conf_type , conf.lower = conf_lower, data = read.csv(input))

res <- summary(tofit,times=c(1,2,3))
save.df <- as.data.frame(res[c("strata", "time", "n.risk", "n.event", "surv", "std.err", "lower", "upper")])
write.csv(save.df, fit)

png(png)
plot(tofit,xlab="Survival (days)", ylab="Survival", lwd=2,xlim=c(0,1900),ylim=c(0.3,1),col=c("red","blue"))
legend("topright",legend=c("low","high"),lty=c(1,1), 
       lwd=c(2.5,2.5),col=c("red","blue"))
dev.off()