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. 2025 Feb 14;14(2):217. doi: 10.3390/antiox14020217

Figure 3.

Figure 3

Multivariate statistical analysis of metabolomic data in the CG and T7 groups. Partial least squares discriminant analysis (PLS-DA) score plots with cross-validation of metabolites in negative mode (A) and positive mode (B). Orthogonal projection to latent structures–discriminant analysis (OPLS-DA) score plots with cross-validation of metabolites in negative mode (C) and positive mode (D). “R2Y” and “Q2” were two parameters for evaluating the cross-validation model. “R2Y” indicates the explanatory rate, and “Q2” indicates the predictive ability of the PLS-DA and OPLS-DA models. Permutation tests of the PLS-DA models in negative mode (E) and positive mode (F). Permutation tests of the OPLS-DA models in negative mode (G) and positive mode (H). “CG” indicates the control group. “T7” indicates the 7 °C cold stress group.