Table 1.

Average number of neighbors, percentage of non-zero entries, and average value of the non-zero entries (${\overline{w}}_{\mathit{ij}}$) for the main fifteen neighborhood matrices considered for the analysis. The percentage of non-zeros is computed with respect to the number of off-diagonal entries, as $w_{\mathit{ii}}=0$ by definition

	$C_1$	$C_2$	$C_3$	$D_1$	$D_2$	$D_3$	$D_4$	$D_5$	$D_6$	$D_7$	F	S	$H_1$	$H_2$	$H_3$
No. of neighbors	2.86	6.71	9.29	1.00	3.00	5.00	7.00	13.00	13.00	13.00	11.50	13.00	11.50	13.00	11.50
Non-zeros (%)	21.98	51.65	71.43	7.69	23.08	38.46	53.85	100.00	100.00	100.00	88.46	100.00	88.46	100.00	88.46
${\overline{w}}_{\mathit{ij}}$ (non-zeros)	0.35	0.15	0.11	1.00	0.33	0.20	0.14	0.08	0.08	0.08	0.09	0.08	0.09	0.08	0.09