*Vertices 3
1 "中国农业科学" 0.0 0.0 0.0 x_fact 1.739130 y_fact 45.217391
2 "中国烟草科学" 0.0 0.0 0.0 x_fact 2.608696 y_fact 17.391304
3 "云南农业大学学报" 0.0 0.0 0.0 x_fact 20.869565 y_fact 37.391304
*Matrix 
0.000000 0.000000 0.355288 
0.000000 0.000000 0.715404 
0.355288 0.715404 0.000000