Predicting Coupled Herbs for the Treatment of Hypertension Complicated with Coronary Heart Disease in Real-World Data Based on a Complex Network and Machine Learning

Table 1

Regional division of the core herbs.

Core herbs	Proportion in the main coupled herbs		Regional division
	According to apriori (%)	According to the KNN model (%)
Radix paeoniae alba	5.84	6.52	K1
Atractylodis macrocephalae rhizoma	5.84	7.97	K1
Chuanxiong rhizoma	6.49	5.80	K1
Rehmanniae radix	4.55	1.45	K1
Ophiopogonis radix	4.55	5.07	K1
Astragali radix	6.49	5.80	K2
Puerariae lobatae radix	5.19	5.07	K3
Ziziphi spinosae semen	6.49	7.25	K3
Codonopsis radix	7.14	7.97	K4
Schisandrae chinensis fructus	8.44	7.97	K4
Rhizoma pinelliae	5.19	5.07	K5
Citri reticulatae pericarpium	3.90	4.35	K5
Radix angelicae sinensis	6.49	5.80	K5
Radix salviae liguliobae	4.55	4.35	K5
Poria	3.25	2.90	K5
Glycyrrhizae radix et rhizoma	3.25	2.90	K5
Rhizoma coptidis	5.84	5.80	K5
Radix notoginseng	6.49	7.97	K5