*Vertices 5
1 "中国公共卫生" 0.0 0.0 0.0 x_fact 16.067653 y_fact 43.763214
2 "中华流行病学杂志" 0.0 0.0 0.0 x_fact 6.553911 y_fact 29.386892
3 "肿瘤" 0.0 0.0 0.0 x_fact 0.634249 y_fact 5.073996
4 "中国卫生统计" 0.0 0.0 0.0 x_fact 7.399577 y_fact 15.433404
5 "数理统计与管理" 0.0 0.0 0.0 x_fact 0.422833 y_fact 6.342495
*Matrix 
0.000000 0.606110 0.000000 0.376191 0.000000 
0.606110 0.000000 0.000000 0.322898 0.000000 
0.000000 0.000000 0.000000 0.000000 0.000000 
0.376191 0.322898 0.000000 0.000000 0.254382 
0.000000 0.000000 0.000000 0.254382 0.000000