get_cindex: Get c-index
In csetraynor/survbayes2: Bayesian Survival Models (survbayes2)

Description Usage Arguments Value Author(s) References See Also Examples

The efficacy of the survival model can be measured by the concordance statistic

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get_cindex(x, mod, ...)

get_cindex(x, mod, ...)

`mod`	Coxph model object fitted with coxph (survival).
`data`	For the default functions, a datframe containing survival (time), and status (0:censored/1:event), and the explanatory variables.

A cindex object

Carlos S Traynor

Terry M. Therneau and Patricia M. Grambsch (2000). _Modeling Survival Data: Extending the Cox Model_. Springer, New York. ISBN 0-387-98784-3. @export get_cindex

[coxph]

require(survival)
require(dplyr)
data(lung)
lung <- lung %>%
mutate(status = (status == 2))

mod <- coxph(Surv(time, status)~ age, data = lung)

get_cindex(lung, mod)