Table 2.

Top 30 couplet medicines

Rules	support	confidence	coverage	lift	count
{Jiuchuanxiong} => {Danggui}	0.203	0.602	0.338	1.758	2154
{Danggui} => {Jiuchuanxiong}	0.203	0.594	0.342	1.758	2154
{Chishao} => {Jiuchuanxiong}	0.162	0.738	0.220	2.184	1721
{Jiuchuanxiong} => {Chishao}	0.162	0.481	0.338	2.184	1721
{Chishao} => {Danggui}	0.143	0.651	0.220	1.901	1518
{Danggui} => {Chishao}	0.143	0.418	0.342	1.901	1518
{Honghua} => {Jiuchuanxiong}	0.131	0.745	0.176	2.206	1393
{Jiuchuanxiong} => {Honghua}	0.131	0.389	0.338	2.206	1393
{Zhichenpi} => {Fuling}	0.121	0.515	0.235	1.849	1280
{Fuling} => {Zhichenpi}	0.121	0.434	0.278	1.849	1280
{Shengdihuang} => {Jiuchuanxiong}	0.114	0.704	0.162	2.084	1210
{Jiuchuanxiong} => {Shengdihuang}	0.114	0.338	0.338	2.084	1210
{Huangqi} => {Danggui}	0.114	0.493	0.231	1.441	1209
{Danggui} => {Huangqi}	0.114	0.333	0.342	1.441	1209
{Honghua} => {Danggui}	0.114	0.646	0.176	1.888	1208
{Danggui} => {Honghua}	0.114	0.333	0.342	1.888	1208
{Shengdihuang} => {Danggui}	0.114	0.703	0.162	2.053	1208
{Danggui} => {Shengdihuang}	0.114	0.333	0.342	2.053	1208
{Fuling} => {Danggui}	0.109	0.390	0.278	1.140	1152
{Danggui} => {Fuling}	0.109	0.318	0.342	1.140	1152
{Gancaopian} => {Danggui}	0.109	0.363	0.300	1.060	1152
{Danggui} => {Gancaopian}	0.109	0.318	0.342	1.060	1152
{Fuling} => {Jiuchuanxiong}	0.108	0.389	0.278	1.152	1148
{Jiuchuanxiong} => {Fuling}	0.108	0.321	0.338	1.152	1148
{Chanshantaoren} => {Honghua}	0.106	0.813	0.131	4.609	1126
{Honghua} => {Chanshantaoren}	0.106	0.602	0.176	4.609	1126
{Gancaopian} => {Jiuchuanxiong}	0.106	0.353	0.300	1.045	1121
{Jiuchuanxiong} => {Gancaopian}	0.106	0.313	0.338	1.045	1121
{Huangqi} => {Jiuchuanxiong}	0.105	0.454	0.231	1.343	1112
{Jiuchuanxiong} => {Huangqi}	0.105	0.311	0.338	1.343	1112