*Vertices 7
1 "中国沙漠" 0.0 0.0 0.0 x_fact 1.583531 y_fact 12.034838
2 "地理学报" 0.0 0.0 0.0 x_fact 2.137767 y_fact 5.727105
3 "土壤学报" 0.0 0.0 0.0 x_fact 1.477963 y_fact 4.618633
4 "水土保持学报" 0.0 0.0 0.0 x_fact 6.254949 y_fact 18.131433
5 "自然资源学报" 0.0 0.0 0.0 x_fact 3.483769 y_fact 5.436791
6 "生态学报" 0.0 0.0 0.0 x_fact 12.852996 y_fact 32.304038
7 "应用生态学报" 0.0 0.0 0.0 x_fact 10.398522 y_fact 21.747163
*Matrix 
0.000000 0.245826 0.000000 0.000000 0.000000 0.000000 0.000000 
0.245826 0.000000 0.000000 0.000000 0.722387 0.237646 0.000000 
0.000000 0.000000 0.000000 0.228118 0.000000 0.000000 0.314659 
0.000000 0.000000 0.228118 0.000000 0.251504 0.000000 0.000000 
0.000000 0.722387 0.000000 0.251504 0.000000 0.439355 0.401690 
0.000000 0.237646 0.000000 0.000000 0.439355 0.000000 0.759597 
0.000000 0.000000 0.314659 0.000000 0.401690 0.759597 0.000000