*Vertices 4
1 "华中农业大学学报" 0.0 0.0 0.0 x_fact 3.553299 y_fact 15.059222
2 "作物学报" 0.0 0.0 0.0 x_fact 7.445008 y_fact 55.329949
3 "棉花学报" 0.0 0.0 0.0 x_fact 4.737733 y_fact 17.089679
4 "湖北农业科学" 0.0 0.0 0.0 x_fact 8.121827 y_fact 12.521151
*Matrix 
0.000000 0.000000 0.226050 0.552187 
0.000000 0.000000 0.368609 0.509792 
0.226050 0.368609 0.000000 0.547009 
0.552187 0.509792 0.547009 0.000000