*Vertices 4
1 "中国农业科学" 0.0 0.0 0.0 x_fact 5.253940 y_fact 22.767075
2 "棉花学报" 0.0 0.0 0.0 x_fact 14.886165 y_fact 35.726795
3 "中国棉花" 0.0 0.0 0.0 x_fact 12.784588 y_fact 27.670753
4 "江苏农业科学" 0.0 0.0 0.0 x_fact 4.378284 y_fact 13.835377
*Matrix 
0.000000 0.409288 0.232455 0.000000 
0.409288 0.000000 0.816149 0.257269 
0.232455 0.816149 0.000000 0.374399 
0.000000 0.257269 0.374399 0.000000