Table 6. Betweenness, Closeness and Eigenvector Centrality of Herbs in the Co-occurrence Network

Rank Betweenness Centrality Closeness Centrality Eigenvector Centrality
1 當歸 (0.142772) 當歸 (0.823419) 荊芥 (0.323164)
2 生地黃 (0.055592) 梔子 (0.745738)生地黃 (0.745738) 防風 (0.316617)
3 梔子 (0.050106) 川芎 (0.264554)
4 荊芥 (0.037276) 荊芥 (0.718620)防風 (0.718620) 生地黃 (0.260116)
5 防風 (0.035968) 梔子 (0.250654)
6 黃連 (0.035482) 石膏 (0.693405) 連翹 (0.247280)
7 白芍藥 (0.034371) 白芍藥 (0.687376)黃連 (0.687376) 當歸 (0.234787)
8 石膏 (0.030533) 石膏 (0.232176)
9 肉桂 (0.029599) 川芎 (0.675626) 薄荷 (0.189490)
10 玄蔘 (0.028314) 蒼朮 (0.669900)連翹 (0.669900)柴胡 (0.669900) 黃芩 (0.187851)