Nondestructive Detection of Moisture Content in Palm Oil by Using Portable Vibrational Spectroscopy and Optimal Prediction Algorithms

Table 2

Effect of spectra pre-treatment on PLS regression.

Pretreatment	LV	Rc	RMSEC	Rp	RMSEP
Raw	2	0.897	0.893	0.941	0.500
SNV	3	0.931	0.566	0.912	0.415
MSC	3	0.818	1.318	0.733	0.612
SGD1^1	3	0.948	0.586	0.938	0.574
SGD2^2	2	0.941	0.599	0.932	0.553