October 2017
Beginner to intermediate
572 pages
26h 1m
English
Perform the following step:
> survdiff(Surv(cancer$time, cancer$status)~cancer$sex) Output Call: survdiff(formula = Surv(cancer$time, cancer$status) ~ cancer$sex) N Observed Expected (O-E)^2/E (O-E)^2/V cancer$sex=1 138 112 91.5817 4.55228 10.3267 cancer$sex=2 90 53 73.4183 5.67850 10.3267 Chisq= 10.3 on 1 degrees of freedom, p= 0.00131116
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