*Vertices 14
1 "武汉植物学研究" 0.0 0.0 0.0 x_fact 1.197455 y_fact 1.733816
2 "西北植物学报" 0.0 0.0 0.0 x_fact 4.465511 y_fact 7.284520
3 "植物学通报" 0.0 0.0 0.0 x_fact 2.332543 y_fact 2.532119
4 "植物生理学通讯" 0.0 0.0 0.0 x_fact 3.293002 y_fact 4.116253
5 "中国农业科学" 0.0 0.0 0.0 x_fact 7.047524 y_fact 10.178371
6 "南京林业大学学报" 0.0 0.0 0.0 x_fact 0.785830 y_fact 1.646501
7 "作物学报" 0.0 0.0 0.0 x_fact 8.407135 y_fact 11.937134
8 "干旱地区农业研究" 0.0 0.0 0.0 x_fact 1.895971 y_fact 3.617313
9 "西北农业学报" 0.0 0.0 0.0 x_fact 0.636148 y_fact 1.035300
10 "麦类作物学报" 0.0 0.0 0.0 x_fact 0.885618 y_fact 1.945865
11 "中国农学通报" 0.0 0.0 0.0 x_fact 0.860671 y_fact 2.220282
12 "生态学报" 0.0 0.0 0.0 x_fact 10.240738 y_fact 16.826743
13 "应用生态学报" 0.0 0.0 0.0 x_fact 8.818760 y_fact 30.173382
14 "生态学杂志" 0.0 0.0 0.0 x_fact 2.469752 y_fact 4.752401
*Matrix 
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