Table 8 Hyperparameters of the random forest grid search.

From: Spatiotemporal distribution, trend, forecast, and influencing factors of transboundary and local air pollutants in Nagasaki Prefecture, Japan

Parameter

Range

Step

Max_depth

3–7

1

Min_sample_leaf

2–30

2

n_estimators

10–150

10

Mas_features

Auto