Uninformative Biological Variability Elimination in Apple Soluble Solids Content Inspection by Using Fourier Transform Near-Infrared Spectroscopy Combined with Multivariate Analysis and Wavelength Selection Algorithm

Table 3

The prediction results of apple SSC by different PLS models.

Model	Number of variables	LVs	Calibration		Prediction
				RMSEC		RMSEP
Full-spectra PLS	3112	14	0.9532	0.2764	0.8902	0.3998
CARS-PLS	40	14	0.9492	0.2878	0.9087	0.3676
RF-PLS	107	13	0.9469	0.2942	0.9026	0.3775