Fig. 2From: Integrating metabolomic data with machine learning approach for discovery of Q-markers from Jinqi Jiangtang preparation against type 2 diabetesThe PCA score plots of different samples. a Coptidis Rhizoma (Cop); b Astragali Radix (Astra); c Lonicerae Japonicae Flos (Lon); d Different batches of JQJT samples extracted with 10% (red), 50% (green), and 90% (blue) ethanolBack to article page