Fitting results of four models.
| Source | Std. dev | R 2 | Adjusted R2 | Predicted R2 | Press | |
|---|---|---|---|---|---|---|
| Linear | 49.45 | 0.6452 | 0.5884 | 0.5290 | 81 150 | |
| 2FI | 50.73 | 0.7162 | 0.5669 | 0.5260 | 81 674 | |
| Quadratic | 2.50 | 0.9995 | 0.9990 | 0.9972 | 474 | Suggested |
| Cubic | 1.85 | 0.9999 | 0.9994 | 0.9923 | 1329 | Aliased |