*Vertices 7
1 "中国农业科学" 0.0 0.0 0.0 x_fact 6.422244 y_fact 12.598425
2 "土壤通报" 0.0 0.0 0.0 x_fact 4.502953 y_fact 6.545276
3 "水土保持学报" 0.0 0.0 0.0 x_fact 3.248031 y_fact 15.846457
4 "植物营养与肥料学报" 0.0 0.0 0.0 x_fact 2.632874 y_fact 4.478346
5 "中国农学通报" 0.0 0.0 0.0 x_fact 0.713583 y_fact 3.395669
6 "农业环境科学学报" 0.0 0.0 0.0 x_fact 3.715551 y_fact 7.603346
7 "应用生态学报" 0.0 0.0 0.0 x_fact 7.406496 y_fact 49.532480
*Matrix 
0.000000 0.462565 0.000000 0.498419 0.560549 0.226246 0.253773 
0.462565 0.000000 0.356903 0.599619 0.574179 0.510453 0.327580 
0.000000 0.356903 0.000000 0.219637 0.000000 0.000000 0.000000 
0.498419 0.599619 0.219637 0.000000 0.415949 0.356149 0.303391 
0.560549 0.574179 0.000000 0.415949 0.000000 0.238792 0.000000 
0.226246 0.510453 0.000000 0.356149 0.238792 0.000000 0.328258 
0.253773 0.327580 0.000000 0.303391 0.000000 0.328258 0.000000