Table 1.

Statistics and performances of DPLS discriminant model for the two tomato plant varieties

No.	Data pretreatment	Derivative treatment	Factors	Calibration				Prediction
				Rc	RMSEC	nc	Pc (%)	RMSEP	nc	Pc (%)
1	MSC	“0, 5, 3”	3	0.920	0.196	81	98.78	0.216	80	97.56
2	MSC	“1, 5, 3”	1	0.800	0.300	77	93.90	0.278	77	93.90
3	MSC	“1, 5, 3”	3	0.930	0.184	82	100	0.239	77	93.90

MSC: multiplicative scatter correction; R _c: coefficient of determination in calibration; RMSEC: root mean square errors of calibration; RMSEP: root mean square errors of prediction; n _c: number classified correctly; P _c: percentage classified correctly