Metabolite Characteristics in Tongue Coating from Damp Phlegm Pattern in Patients with Gastric Precancerous Lesion

Figure 5

Validation plots of OPLS-DA scores of GPL damp phlegm pattern group and healthy control group. (a) Validation plots of OPLS-DA scores by GC-TOF-MS, (b) validation plots of OPLS-DA scores by UHPLC-QE-MS positive ion mode, and (c) validation plots of OPLS-DA scores by UHPLC-QE-MS negative ion mode. The figures of validation plots of OPLS-DA scores showed that the models of GPL damp phlegm pattern group and healthy control group had good robustness as well as had no over fitting phenomenon.

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