Three-Dimensional Poincaré Plot Analysis for Heart Rate Variability

Table 3

The clustering results of SD1, SD2, S, EI, GI, PI, and LDE.

Indicator	RI
	nsr2db, cudb	nsr2db, mitdb	nsr2db, sddb	nsr2db, szdb
SD1	0.91	0.80	0.97	0.98
SD2	0.89	0.79	0.97	0.98
S	0.71	0.61	0.91	0.87
EI	0.67	0.60	0.88	0.95
GI	0.82	0.80	0.97	0.98
PI	0.84	0.81	0.95	0.95
LDE	1	1	0.98	1