*Vertices 6
1 "科学通报" 0.0 0.0 0.0 x_fact 2.806297 y_fact 13.210130
2 "中国沙漠" 0.0 0.0 0.0 x_fact 7.015743 y_fact 32.717317
3 "第四纪研究" 0.0 0.0 0.0 x_fact 3.045859 y_fact 9.206023
4 "地理学报" 0.0 0.0 0.0 x_fact 2.395619 y_fact 7.392197
5 "植物生态学报" 0.0 0.0 0.0 x_fact 3.730322 y_fact 8.863792
6 "生态学报" 0.0 0.0 0.0 x_fact 10.540726 y_fact 28.610541
*Matrix 
0.000000 0.000000 0.391704 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 
0.391704 0.000000 0.000000 0.213818 0.000000 0.000000 
0.000000 0.000000 0.213818 0.000000 0.000000 0.242501 
0.000000 0.000000 0.000000 0.000000 0.000000 0.722916 
0.000000 0.000000 0.000000 0.242501 0.722916 0.000000