Table 2. Contingency table of composite classifier.

		Predicted Medium/Phase/Strain
		LEM	LEB	LEE	LEO	9EM	9EB	9EO	MEM	MEB	OEM	OEE	OEO	O	Total
Known Medium/Phase/Strain	LEM	822	0	0	1	0	0	0	0	0	0	0	0	8	831
	LEB	3	97	0	1	0	0	0	0	0	1	0	1	1	104
	LEE	2	0	41	0	0	0	0	0	0	0	0	0	11	54
	LEO	13	2	0	250	0	0	0	0	0	1	0	3	2	271
	9EM	0	0	0	1	215	0	0	0	0	0	0	0	0	216
	9EB	0	0	0	0	0	30	1	0	0	0	0	0	0	31
	9EO	0	0	0	0	1	0	49	1	0	0	0	0	1	52
	MEM	3	0	0	2	0	0	0	50	3	0	0	0	0	58
	MEB	0	0	0	1	0	0	0	1	22	0	0	0	0	24
	OEM	2	1	0	1	1	0	0	0	0	174	0	1	8	188
	OEE	0	0	1	0	0	0	0	0	0	0	29	0	5	35
	OEO	4	2	0	2	0	0	0	0	0	3	0	186	2	199
	O	31	9	15	18	0	0	2	1	0	20	3	22	58	179
	Total	880	111	57	277	217	30	52	53	25	199	32	213	96	2242

(1) LEM, LB medium + mid/late exponential phase + MG1655; (2) LEB, LB medium + mid/late exponential phase + BW25113; (3) LEE, LB medium + mid/late exponential phase + EMG2; (4) LEO, LB medium + mid/late exponential phase + strains other than MG1655, BW25133 and EMG2; (5) 9EM, M9 + mid/late exponential phase + MG1655; (6) 9EB, M9 + mid/late exponential phase + BW25113; (7) 9EO, M9 + mid/late exponential phase + strains other than MG1655, BW25133 and EMG2; (8) MEM, MOPS + mid/late exponential phase + MG1655; (9) MEB, MOPS + mid/late exponential phase + BW25113; (10) OEM, the other medium that is not LB, M9, or MOPS + mid/late exponential phase + MG1655; (11) OEE, the other medium that is not LB, M9, and MOPS + mid/late exponential + EMG2; (12) OEO, the other medium that is not LB, M9, or MOPS + mid/late exponential phase + the other strain that is not MG1655, BW25113, or EMG2; (12) O, the others that don’t belong to any of thirteen classes