Table 1.
Evaluation parameters obtained from PLS-DA models.
| Mode | HILIC |
HSS T3 |
||||
|---|---|---|---|---|---|---|
| PC | R2 (cum) | Q2 (cum) | PC | R2 (cum) | Q2 (cum) | |
| ESI+ | 4 | 0.99865 | 0.93448 | 5 | 0.99981 | 0.8924 |
| ESI− | 5 | 0.99992 | 0.94174 | 4 | 0.99557 | 0.65937 |
Abbreviations: ESI, electrospray ionization; HILIC, hydrophilic interaction liquid chromatography; PLS-DA, partial least squares discriminant analysis.
R2: represents the model interpretation rate; Q2: represents the prediction ability of the model; The closer R2 and Q2 are to 1, the more stable and reliable the model is.