*Vertices 4
1 "浙江林学院学报" 0.0 0.0 0.0 x_fact 3.937824 y_fact 13.989637
2 "竹子研究汇刊" 0.0 0.0 0.0 x_fact 0.310881 y_fact 4.870466
3 "浙江林业科技" 0.0 0.0 0.0 x_fact 2.901554 y_fact 4.248705
4 "生态学报" 0.0 0.0 0.0 x_fact 0.518135 y_fact 76.891192
*Matrix 
0.000000 0.000000 0.899280 0.000000 
0.000000 0.000000 0.291567 0.000000 
0.899280 0.291567 0.000000 0.000000 
0.000000 0.000000 0.000000 0.000000