Rapid and Nondestructive Detection of Proline in Serum Using Near-Infrared Spectroscopy and Partial Least Squares

Figure 5

(a) The distribution of the retained features. (b) The comparison of the reconstructed spectrum after screening the features with the original full spectrum. (c) The comparison between the predicted value of the verification set and the actual value. (d) The comparison between the predicted value of the calibration set and the actual value. (e) Final model effect.

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