The root mean square error of prediction (RMSEP) was used as an external indicator of the predictive ability of the model. It is a statistical measure of how well the model predicts new samples (not used when building the model). It is calculated using
The root mean square error of prediction (RMSEP) was used asan external indicator of the predictive ability of the model. It is astatistical measure of how well the model predicts new samples(not used when building the model). It is calculated using