Initial CRAN submission.
risk_pred_core() (2- and 5-yearKFRE).RiskPredictor withpredict_kfre() andkfre_person().add_kfre_risk_col() to appendkfre_<n>var_<y>year columns.eval_kfre_metrics() andplot_kfre_metrics().class_esrd_outcome() andclass_ckd_stages().apply_precision(), unit tests incl. Seoul demo(skipped if local data missing).