Table 2.

Full calibration PLS-DA confusion matrices results of each dye for each week, featuring the true positive rate (TPR) indicating the accuracy of the program to predict that length of exposure time among the rest and the overall success rate (OSR) of the program’s ability to predict all weeks per colorant.

Dye (LV#)	OSR (%)	Control (TPR%) (n = 50)	Predicted Exposure Time True Positive Rates (%)
			1 Week (n = 150)	2 Weeks (n = 150)	3 Weeks (n = 150)	4 Weeks (n = 150)	5 Weeks (n = 150)	6 Weeks (n = 150)	7 Weeks (n = 150)	8 Weeks (n = 150)
PBA (7)	59.04	100	98	58.67	59.33	56	18.67	61.33	2.67	76.67
PBU (6)	54.82	100	89.33	16.67	44.67	80	18	78.67	42.67	23.33
PPU (6)	78.52	100	100	66.67	66.67	60	26.67	93.33	93.33	100
PRD (6)	88.89	100	100	93.33	86.67	93.33	93.33	73.33	80	80
SBA (6)	53.7	100	66	56.67	47.33	0	49.33	48.67	46	69.33
SBU (7)	68.15	100	86	46	12.67	58.67	69.33	86	66.67	88
SPU (7)	57.7	100	56	38.67	13.33	50	40.67	46	83.33	91.33
SRD (7)	62.15	94	88	24.67	44	9.33	72.67	88	48.67	90
OSR (%)	65.37	99.25	85.42	50.17	46.83	50.92	48.58	71.92	57.92	77.33

OSR = Mean TPR%.