Application of Fourier Transform Infrared Spectroscopy for the Oxidation and Peroxide Value Evaluation in Virgin Walnut Oil

Table 2

PLS performance for analysis of calibration and validation model.

Model	Principal components	𝑅^2	Std. dev.	RMSEC (meq/kg)	RMSEP (meq/kg)
Calibration	10	0.9918	0.236	0.4838
Validation	10	0.9903	0.257		0.3545