*Vertices 5
1 "植物生理学通讯" 0.0 0.0 0.0 x_fact 2.394107 y_fact 17.127072
2 "中国农业科学" 0.0 0.0 0.0 x_fact 6.077348 y_fact 24.493554
3 "湖北农业科学" 0.0 0.0 0.0 x_fact 12.891344 y_fact 16.390424
4 "中国油料作物学报" 0.0 0.0 0.0 x_fact 8.103131 y_fact 24.309392
5 "中国棉花" 0.0 0.0 0.0 x_fact 2.025783 y_fact 17.679558
*Matrix 
0.000000 0.238062 0.391835 0.205230 0.000000 
0.238062 0.000000 0.393231 0.388948 0.000000 
0.391835 0.393231 0.000000 0.829669 0.338631 
0.205230 0.388948 0.829669 0.000000 0.000000 
0.000000 0.000000 0.338631 0.000000 0.000000