Feasibility Study of the Use of Handheld NIR Spectrometer for Simultaneous Authentication and Quantification of Quality Parameters in Intact Pineapple Fruits

Table 2

The performance of classification models influenced by preprocessing techniques.

Model		Number of principal components	Correct classification rate (%)
			Calibration set (68)	Prediction set (22)
KNN	Raw	3	45.56	50.00
	MC	3	52.22	60.00
	MSC	3	98.89	100.00
LDA	Raw	3	61.11	66.67
	MC	3	55.56	50.00
	MSC	3	100.00	100.00