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Performance indices of the established models for the lobetyolin using different regressions
| Spectrum region (cm−1) | Region percentage (%) | LV | R C | RMSEC (μg/ml) | R CV | RMSECV (μg/ml) | R P | RMSEP (μg/ml) |
| 4000–10000 | 100 | 9 | 0.9953 | 1.38 | 0.9747 | 3.21 | 0.9716 | 4.68 |
| 5500–6300 | 13 | 7 | 0.9975 | 1.02 | 0.9946 | 1.49 | 0.9974 | 1.22 |
| 5500–10000 | 75 | 5 | 0.9931 | 1.69 | 0.9905 | 1.97 | 0.9959 | 1.44 |
LV: latent variable; R: correlation coefficient; RMSE: root mean squares error; C: calibration; CV: cross-validation; P: prediction
