*Vertices 4
1 "中国农业科学" 0.0 0.0 0.0 x_fact 14.298643 y_fact 37.013575
2 "作物学报" 0.0 0.0 0.0 x_fact 13.574661 y_fact 39.185520
3 "西南农业学报" 0.0 0.0 0.0 x_fact 7.963801 y_fact 10.769231
4 "杂交水稻" 0.0 0.0 0.0 x_fact 2.533937 y_fact 13.031674
*Matrix 
0.000000 0.814351 0.723492 0.000000 
0.814351 0.000000 0.797703 0.201705 
0.723492 0.797703 0.000000 0.493181 
0.000000 0.201705 0.493181 0.000000