Replacements of Rare Herbs and Simplifications of Traditional Chinese Medicine Formulae Based on Attribute Similarities and Pathway Enrichment Analysis

Table 2

Values of natures for herb 𝑖 and herb 𝑗.

	Cold	Cool	Warm	Hot
Herb 𝑖	0.25	0.25	0.25	0.25
Herb 𝑗	0.8	0	0	0

 ^∗Assuming herb 𝑖 has a nature of “ping” and herb 𝑗 has a nature of “slight cold.” Values of natures are showed in this table. So 𝐴_𝑖,𝑗 is calculated as 𝐴_𝑖,𝑗 = 0.25/(0.8+0.25+0.25+0.25)≈0.16.