Mean Normalized Usage (MNU) of Environmental Covariates for Cubist Soil Property Prediction Models

This dataset and code repository contain the results and scripts used to evaluate the relative importance of environmental covariates across 126 machine learning models predicting a suite of soil agronomic properties for the full soil profile (18 soil properties × 7 depth intervals). Covariate importance is normalized to account for usage frequency of covariate predictors as model rules and linear model coefficients across depth class, covariate type, and analysis scale.