Comparison of Three Supervised Learning Methods for Digital Soil Mapping: Application to a Complex Terrain in the Ecuadorian Andes
Figure 8
5-fold cross-validated RMSE distributions of the selected modelling procedures. LM: linear regression; RF: random forest; BO: gradient boosting. The lines refer to the boxplot parameters of the RMSE distribution of the mean of the data as prediction model. Solid line: median; dashed line: upper/lower hinges; dotted line: upper/lower whiskers.