Table 5.

Results of the cross-validated RF-RFE technique

Initial criterion	${\mu }_{ac{c}_s}$	Accuracy standard deviation	RF-RFE importance measure	Core criterion
V1	0.92	0.276	0.312	*
V2	0.64	0.489	0.289	*
V3	0.96	0.200	0.738	*
V4	0.92	0.276	1.523	*
V5	0.96	0.200	-
V6	0.92	0.276	-
V7	0.68	0.476	-
V8	0.92	0.276	2.008	*
V9	0.72	0.458	-
V10	0.64	0.489	-
V11	0.68	0.476	1.853	*
V12	0.64	0.489	-
V13	0.64	0.489	-
V14	0.64	0.489	-
V15	0.60	0.500	-
V16	0.60	0.500	-
V17	0.64	0.489	-
V18	0.64	0.489	-
V19	0.64	0.489	1.940	*
V20	0.64	0.489	-
V21	0.60	0.500	-
V22	0.60	0.500	2.114	*
V23	0.60	0.500	-
V24	0.60	0.500	1.737	*
V25	0.60	0.500	2.069	*
V26	0.60	0.500	1.872	*
V27	0.60	0.500	2.008	*
V28	0.60	0.500	-
V29	0.60	0.500	2.097	*
V30	0.60	0.500	1.737	*