Research Article

Rapid and Green Methods for Qualitative Classification of Polygonati Rhizoma and Polygonati Odorati Rhizoma Using a Handheld near Infrared Instrument

Figure 4

Classification results of the PLSDA method: (a) POR classification results of the calibration (cal.) and test set (test) and (b) prediction probability of POR of the calibration and test set.
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(b)