Table 8.

The relative closeness and ranking of cities.

City	${{\mathit{S}}_{\mathit{i}}}^{\mathbf{+}}$	${{\mathit{S}}_{\mathit{i}}}^{\mathbf{-}}$	${{\mathit{c}}_{\mathit{i}}}^{\mathbf{+}}$	Rank	City	${{\mathit{S}}_{\mathit{i}}}^{\mathbf{+}}$	${{\mathit{S}}_{\mathit{i}}}^{\mathbf{-}}$	${{\mathit{c}}_{\mathit{i}}}^{\mathbf{+}}$	Rank
Heifei	1.0000	0.0000	1.0000	1	Ma’anshan	0.1335	0.8272	0.1390	9
Wuhu	0.3877	0.5183	0.4279	2	Bengbu	0.1114	0.8558	0.1152	10
Huangshan	0.2128	0.6875	0.2364	3	Lu’an	0.1031	0.8552	0.1076	11
Anqing	0.1866	0.7464	0.2000	4	Fuyang	0.0817	0.8908	0.0840	12
Xuancheng	0.1662	0.7588	0.1797	5	Bozhou	0.0497	0.9333	0.0505	13
Chizhou	0.1550	0.7669	0.1681	6	Suzhou	0.0349	0.9589	0.0351	14
Chuzhou	0.1525	0.7996	0.1602	7	Huaibei	0.0267	0.9713	0.0267	15
Tongling	0.1363	0.8279	0.1414	8	Huainan	0.0056	0.9955	0.0056	16