Description: TimeMetric (formerly PAmeasure): An R package providing a comprehensive suite of performance metrics (R², C-indices, Brier Score, time-dependent AUC) for survival models with right-censoring, competing risks, and specialized designs (case–cohort, nested case–control).
Reference: Li, G., & Wang, X. (2019). Prediction accuracy measures for a nonlinear model and for right-censored time-to-event data. Journal of the American Statistical Association, 114(528), 1815-1825. Zhuang, Z., Su, W., Kawaguchi, E., & Li, G. (2025). Time-Dependent Pseudo R^2 for Assessing Predictive Performance in Competing Risks Data. arXiv preprint arXiv:2507.15040.