October 2017
Beginner to intermediate
572 pages
26h 1m
English
Perform the following steps to view the summary:
> sfit <- survfit(Surv(time, status)~sex, data=cancer)> sfitOutputCall: survfit(formula = Surv(time, status) ~ sex, data = cancer)n events median 0.95LCL 0.95UCLsex=1 138 112 270 212 310sex=2 90 53 426 348 550> summary(sfit)The following are a few lines from the output of the summary command:Call: survfit(formula = s ~ sex, data = cancer) sex=1 time n.risk n.event survival std.err lower 95% CI upper 95% CI 11 138 3 0.9783 0.0124 0.9542 1.000 12 135 1 0.9710 0.0143 0.9434 0.999 13 134 2 0.9565 0.0174 0.9231 0.991 15 132 1 0.9493 0.0187 0.9134 0.987 26 131 1 0.9420 0.0199 0.9038 0.982
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