Exploring the Node Importance and Its Influencing Factors in the Railway Freight Transportation Network in China

Table 3

Correlations among the independent variables.

	PopDen	GDP	HighwayDen	Fixedasset	RFC	Longitude	Latitude	Coastalregion	YEZ	SREB	Resource	Crisis	Newnormal
PopDen	1
GDP	0.24	1
HighwayDen	0.68	0.59	1
Fixedasset	0.05	0.81	0.40	1
RFC	-0.03	-0.27	-0.32	-0.26	1
Longitude	0.37	0.37	0.49	0.20	-0.39	1
Latitude	-0.05	-0.11	-0.19	-0.15	0.04	0.17	1
Coastalregion	0.40	0.45	0.36	0.26	-0.20	0.40	-0.26	1
YEZ	0.24	0.13	0.40	0.18	-0.27	0.07	-0.43	-0.13	1
SREB	-0.29	-0.32	-0.40	-0.13	-0.02	-0.63	-0.03	-0.33	-0.03	1
Resource	-0.09	0.13	0.05	0.06	-0.10	0.34	0.42	-0.08	-0.24	-0.35	1
Crisis	-0.01	-0.13	-0.02	-0.19	0	0	0	0	0	0	0	1
Newnormal	0.02	0.32	0.15	0.53	0	0	0	0	0	0	0	-0.26	1