Table 3.

Performance of kNN for identifying Src inhibitors and non-inhibitors evaluated by 5-fold cross validation study

Cross - validation	Src inhibitors				Src non-inhibitors				Q	C
	No of training/ testing inhibitors	TP	FN	SE	No of training/testing non-inhibitors	TN	FP	SP
1	1362/341	302	39	88.56%	50654/12664	12635	29	99.77%	99.48%	0.896
2	1362/341	313	28	91.79%	50654/12664	12620	44	99.65%	99.45%	0.894
3	1362/341	311	30	91.20%	50654/12664	12610	54	99.57%	99.35%	0.878
4	1363/340	316	24	92.94%	50655/12663	12619	44	99.65%	99.48%	0.901
5	1363/340	302	38	88.82%	50655/12663	12632	31	99.76%	99.47%	0.895
Average				90.66%				99.68%	99.44%	0.893
SD				0.0191				0.0008	0.0005	0.0085
SE				0.0085				0.0004	0.0002	0.0038