*Vertices 4
1 "安徽农业大学学报" 0.0 0.0 0.0 x_fact 2.910603 y_fact 11.434511
2 "中国农业科学" 0.0 0.0 0.0 x_fact 3.118503 y_fact 50.103950
3 "浙江农业学报" 0.0 0.0 0.0 x_fact 7.276507 y_fact 9.771310
4 "农业环境科学学报" 0.0 0.0 0.0 x_fact 1.247401 y_fact 28.690229
*Matrix 
0.000000 0.285793 0.676804 0.000000 
0.285793 0.000000 0.458187 0.000000 
0.676804 0.458187 0.000000 0.528285 
0.000000 0.000000 0.528285 0.000000