*Vertices 6
1 "系统工程理论与实践" 0.0 0.0 0.0 x_fact 0.495540 y_fact 13.974232
2 "地理学报" 0.0 0.0 0.0 x_fact 2.279485 y_fact 19.226957
3 "土壤学报" 0.0 0.0 0.0 x_fact 4.261645 y_fact 20.614470
4 "土壤通报" 0.0 0.0 0.0 x_fact 11.298315 y_fact 20.515362
5 "农业系统科学与综合研究" 0.0 0.0 0.0 x_fact 3.766105 y_fact 8.820614
6 "水利学报" 0.0 0.0 0.0 x_fact 3.270565 y_fact 16.848365
*Matrix 
0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.813113 0.000000 0.000000 
0.000000 0.000000 0.813113 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.000000 0.000000 0.000000