Table 1.

Variables important in projection and verification by permutation test between different groups.

Fatty Acid	Group I vs. II	Group I vs. III	Group II vs. III
C16:0	0.088	0.073	0.093
C18:0	0.064	0.037	0.042
C18:1 n9	1.828	1.783	1.877
C18:2 n6	1.208	1.260	1.127
C18:3 n3	0.430	0.476	0.443
R2X	0.999	0.998	0.998
R2Y	0.711	0.486	0.630
Q2Y	0.686	0.423	0.596

C16:0, palmitic acid; C18:0, stearic acid; C18:1 n9, oleic acid; C18:2 n6, linoleic acid; C18:3 n3, linolenic acid; R²X represents the explanatory rate for the X matrix in the model; R²Y represents the explanatory rate for the Y matrix in the model; Q²Y represents the predictive ability of the model. In theory, the model is better when R²X, R²Y, and Q²Y are closer to one; usually, the model is better if R²X, R²Y, and Q²Y are higher than 0.5, and it is acceptable if R²X, R²Y, and Q²Y are higher than 0.4.