1.Survival Analysis Basics Basic concept Censoring:right censoring Survival and hazard functions Log-rank test: Kaplan-Meier survival estimate null hypothesis is that there is no difference in survival between the two groups
Non-parametric test , so no assumptions about the survival distributions Log rank statistic is approximately distributed as a chi-square test statistic. Survival analysis in R #data library("survival") library("survminer") data("lung") #survival fit fit <- survfit(Surv(time, status) ~ sex, data = lung) #summary summary(fit)$table ## records n.
