Table 5.

Confusion matrix.

Categorization technique	Outcome	Normal case	Abnormal case	Acc (%)
AR	N	25	0	100
	A	0	20	100
	Tot	25	20	100
CHF	N	22	1	97
	A	3	21	99.9
	Tot	25	22	98.3
NSR	N	22	2	95
	A	1	23	99.9
	Tot	23	25	96.4