Table 4.

Percentage of Montilla-Moriles PDO vinegars classified by manufacturing method. PLS-DA.

Qualitative groups	Unbalanced models			Balanced models
	FNS I	FNS II	CORONA 45 VIS/NIR	FNS I	FNS II	CORONA 45 VIS/NIR
	A: 94.3%	A: 92.8%	A: 94.3%	A: 91.7%	A: 93.7%	A: 93.7%
	B: 8	B: 8	B: 6	B: 5	B: 6	B: 4
	C: 1,5,5,1	C: 1,5,5,1	C: 1,5,5,1 *	C: 1,5,5,1	C: 2,10,5,1	C: 2,5,5,1
Manufacturing method
Traditional	87.5%	91.7%	91.6%	87.5%	95.8%	91.7%
Submerged	97.8%	93.5%	95.6%	95.8%	91.7%	95.8%

Note:

A Percentage of correctly classified training samples after cross validation;

B Number of synthetic variables;

C Math treatment;

* The best of the best models for the instruments studied.