R-square calculation for Cox regression models
rsq_surv(fitobj)
fitobj
The value for the explained variance.
F. Harrell. Regression Modeling Strategies. With Applications to Linear Models, Logistic and Ordinal Regression, and Survival Analysis. 2nd Edition. Springer, New York, NY, 2015.
pool_performance
Martijn Heymans, 2021
Useful links