中国省际边界区县域城镇化空间格局及影响因素

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Spatial structure and factors influencing county urbanization of inter-provincial border areas in China

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表2 两个自变量对因变量的交互作用类型

Tab. 2 Types of interaction between two covariates

判据 交互作用 q(X1∩X2)<min(q(X1), q(X2)) 非线性减弱 min(q(X1), q(X2))<q(X1∩X2)<max(q(X1), q(X2)) 单因子非线性减弱 q(X1∩X2)>max(q(X1), q(X2)) 双因子增强 q(X1∩X2)=q(X1)+q(X2) 独立 q(X1∩X2)>q(X1)+q(X2) 非线性增强