Table 2.
Component | R2X (cum) | R2Y (cum) | Q2Y (cum) | |
---|---|---|---|---|
ESI+ mode | 4P+1O | 0.329 | 0.984 | 0.801 |
ESI− mode | 5P+1O | 0.434 | 0.993 | 0.796 |
R2X (cum) and R2Y (cum) represent the cumulative modeled variation in X and Y matrices, respectively, and Q2Y (cum) is the cumulative predicted variation. 4P+1O, four predictive components and one orthogonal component for establishing the OPLS-DA model in the ESI+ mode. 5P+1O, five predictive components and one orthogonal component for establishing the OPLS-DA model in the ESI− mode.