00:18:47.729,00:18:50.729 Alan Brammer: docs: https://scikit-learn.org/stable/modules/generated/sklearn.ensemble.RandomForestRegressor.html 00:22:13.014,00:22:16.014 Alan Brammer: You can specify how to split: https://scikit-learn.org/stable/modules/generated/sklearn.model_selection.PredefinedSplit.html