Table 5. External and internal criteria of the model .

Parameters	Value
Internal validation
R (all)	0.991
$R_{train}^2$	0.981
Q2	0.989
MSE	0.002
MAE	0.028
RMSE	0.039
$R_{adjusted}^2$	0.989
External validation
R	0.983
Q2	0.966
MSE	0.004
MAE	0.042
RMSE	0.063