Table 2.
Summary parameters for OPLS-DA models before and after treatment.
| Groups | Models | R 2 X | R 2 Y | Q 2 | |
|---|---|---|---|---|---|
| LCI | Before vs. after | OPLS-DA | 0.952 | 0.541 | 0.996 |
| HCI | Before vs. after | OPLS-DA | 0.951 | 0.682 | 0.994 |
| MC | Before vs. after | OPLS-DA | 0.850 | 0.622 | 1 |
R 2 X and R2Y show how well the model explains the variation in X and Y, respectively. Q2 represents the quality and predictive power of the model: values closer to 1 indicate a more stable and reliable model.