*Vertices 3
1 "中国农业科学" 0.0 0.0 0.0 x_fact 17.505470 y_fact 44.967177
2 "作物学报" 0.0 0.0 0.0 x_fact 15.207877 y_fact 46.170678
3 "大豆科学" 0.0 0.0 0.0 x_fact 2.078775 y_fact 8.862144
*Matrix 
0.000000 0.814669 0.251129 
0.814669 0.000000 0.231592 
0.251129 0.231592 0.000000