cindex: C index for mixture cure models

In elong0527/evacure: Evaluate Prognostic accuracy for mixture cure models

Description

Nonparametrics estimators for C index

Usage

cindex(risk, pi, time, delta, tau = NULL)

Arguments

risk	the risk score for survival part
pi	the uncured probability
time	observation time
delta	censoring status
tau	boundry of time

Examples

fit <- coxph(Surv(time, status) ~  age + sex , lung, x = T)
risk <- fit$x %*% fit$coefficients
survConcordance(Surv(time, status) ~ risk, lung)
pi <- rep(1,fit$n)
c.index(risk, pi, lung$time, lung$status ==2)
fit <- coxph(Surv(stop, event) ~  rx + size , bladder, x = T)
risk <- fit$x %*% fit$coefficients
survConcordance(Surv(stop, event) ~ risk, bladder)
pi <- rep(1,fit$n)
c.index(risk, pi, bladder$stop, bladder$event)

elong0527/evacure documentation built on Dec. 16, 2020, 1:29 p.m.