Table 8.

The provided equations in three case studies.

Case Study	Multivariate Equations
Lombardy (Milan)	$\mathrm{y}=-594.318+10.129{\mathrm{x}}_1+7.091{\mathrm{x}}_2+7.091{\mathrm{x}}_3+0.204{\mathrm{x}}_4$
Veneto (Venice)	$\mathrm{y}=241.580-17.168{\mathrm{x}}_1-0.299{\mathrm{x}}_2-10.442{\mathrm{x}}_3+0.422{\mathrm{x}}_4$
Emilia-Romagna (Bologna)	$\mathrm{y}=-2.009+10.089{\mathrm{x}}_1-0.508{\mathrm{x}}_2+3.054{\mathrm{x}}_3+0.330{\mathrm{x}}_4$