c_index: c_index

In mlsurvlrnrs: R6-Based ML Survival Learners for 'mlexperiments'

c_index

Description

Calculate the Harrell's concordance index (C-index)

Usage

c_index(ground_truth, predictions)

Arguments

ground_truth	A survival::Surv object with the ground truth.
predictions	A vector with predictions.

Details

A wrapper function around glmnet::Cindex() for use with mlexperiments.

See Also

glmnet::Cindex()

Examples

set.seed(123)
gt <- survival::Surv(
  time = rnorm(100, 50, 15),
  event = sample(0:1, 100, TRUE)
)
preds <- rbeta(100, 2, 5)

c_index(gt, preds)

mlsurvlrnrs documentation built on Sept. 9, 2025, 5:58 p.m.