*Vertices 8
1 "北京大学学报自然科学版" 0.0 0.0 0.0 x_fact 0.510725 y_fact 2.042901
2 "山东师范大学学报" 0.0 0.0 0.0 x_fact 1.532176 y_fact 7.354443
3 "山地学报" 0.0 0.0 0.0 x_fact 0.715015 y_fact 8.784474
4 "植物学通报" 0.0 0.0 0.0 x_fact 0.510725 y_fact 2.145046
5 "中国公共卫生" 0.0 0.0 0.0 x_fact 0.510725 y_fact 13.891726
6 "河南农业大学学报" 0.0 0.0 0.0 x_fact 0.408580 y_fact 5.924413
7 "农业工程学报" 0.0 0.0 0.0 x_fact 0.715015 y_fact 45.760981
8 "理化检验化学分册" 0.0 0.0 0.0 x_fact 0.510725 y_fact 14.096016
*Matrix 
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