Table 9.

Results of model fitting.

	${\text{R}}_{\text{Is}}^2$ (1)	${\text{R}}_{\text{oos}}^2$ (2)	${\text{EVS}}_{\text{oos}}$ (3)	${\text{MSE}}_{\text{oos}}$ (4)	${\text{MAE}}_{\text{oos}}$ (5)	${\text{MedAE}}_{\text{oos}}$ (6)
Multiple linear regression	0.41842795	0.21139459	0.21402806	0.8353831	1.18867211	0.64738668
LASSO	0.05334293	0.01292332	0.02660003	0.90533417	1.48782967	0.66869436
GBR	0.90395376	0.59123809	0.59546335	0.57720771	0.61613055	0.42558157
RFR	0.92743321	0.55325681	0.55601084	0.58604578	0.67338008	0.42271498