*Vertices 4
1 "中国农业科学" 0.0 0.0 0.0 x_fact 48.932806 y_fact 56.837945
2 "作物学报" 0.0 0.0 0.0 x_fact 9.881423 y_fact 22.924901
3 "西南农业学报" 0.0 0.0 0.0 x_fact 4.584980 y_fact 7.667984
4 "杂交水稻" 0.0 0.0 0.0 x_fact 3.162055 y_fact 12.569170
*Matrix 
0.000000 0.938411 0.372874 0.211995 
0.938411 0.000000 0.542536 0.369433 
0.372874 0.542536 0.000000 0.517796 
0.211995 0.369433 0.517796 0.000000