# Held-out test metrics for schema tr_ddi (calibrated)
schema_tag = :tr_ddi
n_features = 14
n_test = 1862
AUC = 0.8435153159695018
MCC = 0.5361298021545055
ECE_raw_per_bin = 0.2050764877009477
ECE_calibrated_per_bin = 0.016363922737681672
Brier = 0.14666549027241502
tuning_measure = BrierLoss()
model = MLJ.Stack (6 fixed-HP base learners + LR_L2 metalearner) + post-hoc calibrator
calibrator_method = isotonic
calibrator_ece_val_raw = 0.17918149617067014
calibrator_ece_val_platt = 0.7286405149220853
calibrator_ece_val_isotonic = 0.01068457194733954
stack_nfolds = 5
data_split = Stack on train; calibrator on val; ECE on test
