Table 14.

Selected models by model selection criteria.

Criteria	Variables
PIC, $\mathbf{\gamma }=\mathbf{0}.\mathbf{05}$	$X_1,X_2,X_4$
PIC, $\mathbf{\gamma }=\mathbf{0}.\mathbf{15}$	$X_1,X_2,X_4$
PIC, $\mathbf{\gamma }=\mathbf{0}.\mathbf{2}$	$X_1,X_2,X_3$
PIC, $\mathbf{\gamma }=\mathbf{0}.\mathbf{25}$	$X_1,X_2,X_4$
PIC, $\mathbf{\gamma }=\mathbf{0}.\mathbf{3}$	$X_1,X_2,X_4$
AIC	$X_1,X_2,X_4$
BIC	$X_1,X_2$
MDIC	$X_1,X_2,X_3$