*Vertices 7
1 "遗传学报" 0.0 0.0 0.0 x_fact 2.200489 y_fact 7.986960
2 "植物生理学通讯" 0.0 0.0 0.0 x_fact 2.037490 y_fact 5.501222
3 "中国农业科学" 0.0 0.0 0.0 x_fact 8.679707 y_fact 17.889161
4 "作物学报" 0.0 0.0 0.0 x_fact 10.961695 y_fact 20.089650
5 "种子" 0.0 0.0 0.0 x_fact 11.939690 y_fact 18.215159
6 "杂交水稻" 0.0 0.0 0.0 x_fact 2.933985 y_fact 11.695192
7 "玉米科学" 0.0 0.0 0.0 x_fact 5.052975 y_fact 18.622657
*Matrix 
0.000000 0.000000 0.331418 0.377400 0.276761 0.000000 0.000000 
0.000000 0.000000 0.347822 0.500840 0.415382 0.000000 0.000000 
0.331418 0.347822 0.000000 0.842715 0.511713 0.000000 0.210485 
0.377400 0.500840 0.842715 0.000000 0.589360 0.202574 0.245177 
0.276761 0.415382 0.511713 0.589360 0.000000 0.327193 0.331055 
0.000000 0.000000 0.000000 0.202574 0.327193 0.000000 0.000000 
0.000000 0.000000 0.210485 0.245177 0.331055 0.000000 0.000000