Table 4.
Statistical performance of regional-scale RF yield prediction model.
| Metric | Test Dataset  | 
Validation Dataset  | 
|---|---|---|
| R Squared (R2) | 0.858 | 0.860 | 
| Adjusted R Squared (R2) | 0.858 | 0.860 | 
| Mean Absolute Error (MAE) | 0.126 | 0.126 | 
| Mean Squared Error (MSE) | 0.032 | 0.031 | 
| Root Mean Squared Error (RMSE) (t ha−1) | 0.179 | 0.177 |