Table 4.

The overall (training and testing sets; n = 290) sensitivity analysis of input variables in artificial neural network (ANN), and support vector machines (SVM) models of metabolizable energy for pigs.

		Input variables
Model		Crude protein	Ether extract	Crude fiber	Starch
ANN	Variable sensitivity ratio (VSR)	2.8	2.7	26.9	7.7
	Rank	3	4	1	2
SVM	VSR	2.9	3.2	18.6	7.1
	Rank	4	3	1	2