data/processed/thesis_table5_stack_contributions.csv

Learner,R2_Holdout,MedAPE_pct
xgb_a,0.6445,20.56
xgb_b,0.6387,20.67
lightgbm,0.6432,20.84
catboost,0.6482,20.60
Stack_Ridge_meta,0.6495,20.32