Multicomponent Analysis of Liuwei Dihuang Pills by a Single Marker Quantification Method and Chemometric Discrimination of Fingerprints

Figure 4

(a) Hierarchical cluster analysis dendrogram. (b) Score plot of PCA. (c) Loading plot of PCA. (d) Score plot of OPLS-DA. (e) Permutation test of OPLS-DA. (f) VIP values of common components.

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