A Classification System to Detect Congestive Heart Failure Using Second-Order Difference Plot of RR Intervals

Table 2

Final classification results for different feature sets and distance measures.

Feature set used	No. of	No. of misclassified
	misclassified	patients
	patients	(Mahalanbois
	(Euclidean distance)	distance
CTM(𝑟)	2	2
{CTM(𝑟),𝐷(𝑟)}	1	0
{CTM(𝑟),𝐷(𝑟)	0	0
CCTM1(𝑟),CCTM2(𝑟)
CCTM3(𝑟),CCTM4(𝑟)}
SDRR	1	1