Table 1.

kNN performance for different channel configurations. The best obtained results are in bold.

No. of K	Channel	Se	Sp	Acc
2	CH1	81.2 %	95.1 %	93.9 %
	CH2	78.9 %	94.0 %	91.8 %
	CH3	77.3 %	95.4 %	93.2 %
4	CH1	86.1 %	97.8 %	96.3 %
	CH2	86.9 %	98.0 %	96.6 %
	CH3	82.9 %	97.6 %	96.7 %
8	CH1	82.1 %	98.7 %	96.6 %
	CH2	80.0 %	98.0 %	95.8 %
	CH3	81.3 %	99.6 %	97.2 %
10	CH1	79.2 %	98.8 %	96.2 %
	CH2	79.0 %	98.3 %	95.9 %
	CH3	80.0 %	99.6 %	97.1 %
12	CH1	77.1 %	98.9 %	96.0 %
	CH2	76.7 %	98.2 %	95.4 %
	CH3	78.0 %	99.6 %	96.8 %