Table 2. Partial results of mathematical experiments for hierarchical correlation analysis of city rank-size distributions.

p	0.6	0.7	0.8	0.9	1.0	1.1	1.2	1.3	1.4	1.5	2.0
D 2	1.5247	1.3693	1.2510	1.1466	1.0495	0.9618	0.8826	0.8158	0.7473	0.6903	0.4544
R 2	0.9727	0.9852	0.9836	0.9777	0.9668	0.9589	0.9489	0.9362	0.9335	0.9184	0.8199
D 0	1.2624	1.1847	1.1255	1.0733	1.0248	0.9809	0.9413	0.9079	0.8737	0.8452	0.7272
D 0 *	1.6667	1.4286	1.2500	1.1111	1.0000	0.9091	0.8333	0.7692	0.7143	0.6667	0.5000
e 2	0.1635	0.0595	0.0155	0.0014	0.0006	0.0052	0.0117	0.0192	0.0254	0.0319	0.0516

Note: R ² denotes the correlation coefficient square, i.e., the goodness of fit.