Figure 8.

Projections of samples on the first principal component (PC1) and second principal component (PC2) after PLS-DA analysis (n = 5), with different groups identified by different colored ellipses

In the table, R2X and R2Y represent the explanation rate of variance of PLS-DA model for independent variable matrix and dependent variable matrix, and Q2 represents the prediction ability of PLS-DA model. The right figure was the VIP value of each variable in the PLS-DA model, and the color of the dot indicated the type of the metabolite variable.

(A) UNX VS control.

(B) 1/6NX VS control.

(C) UUO VS control.