Fig. 2From: Research on electroacupuncture parameters for knee osteoarthritis based on data miningNetwork diagram of association rules of electroacupuncture parameters. *The nodes in the figure are the left-hand side (LHS) and right-hand side (RHS) of the association rule, and the arrow direction is from LHS to RHS. The width of the arrow indicates the degree of support, and the grayscale indicates the level of lift. “Retention time” refers to stimulation durationBack to article page