Table 2.

Summary of all hyperparameters tuned in the repeated cross-validation with the RFE algorithm.

Algorithm or model	Hyperparameters
RFEa algorithm	Number of features to select Number of features to reduce at each step
Machine learning model (RFb)	Number of trees Maximum tree depth
Machine learning model (XGBoostc and LightGBMd)	Number of trees Maximum tree depth Learning rate

^aRFE: recursive feature elimination.

^bRF: random forest.

^cXGBoost: extreme gradient boosting.

^dLightGBM: light gradient boosting machine.