*Vertices 5
1 "中草药" 0.0 0.0 0.0 x_fact 0.545852 y_fact 20.305677
2 "西北农林科技大学学报" 0.0 0.0 0.0 x_fact 3.165939 y_fact 7.150655
3 "西北林学院学报" 0.0 0.0 0.0 x_fact 7.314410 y_fact 11.735808
4 "林业科学" 0.0 0.0 0.0 x_fact 4.039301 y_fact 13.537118
5 "生态学报" 0.0 0.0 0.0 x_fact 4.748908 y_fact 47.270742
*Matrix 
0.000000 0.000000 0.283937 0.000000 0.000000 
0.000000 0.000000 0.568585 0.230555 0.284254 
0.283937 0.568585 0.000000 0.583629 0.300443 
0.000000 0.230555 0.583629 0.000000 0.419268 
0.000000 0.284254 0.300443 0.419268 0.000000