基于残差分析的双彩色变量在地图制图中的应用

The Application of Double Color Variables in Mapping Based on Residual Analysis

对相互关联的空间现象进行回归分析,在求出经验回归方程后,计算残差(估计误差),将残差按间距量表分级,用双彩色变量在地图上表达估计误差偏离程度的空间分布。残差分布图反映了实际值与经验估计值的偏离程度和空间分布规律,可进一步用于残差成因的分析,为相关领域的决策判断提供依据。

Through regression analysis of interconnected space phenomenon, after the linear regression equation is obtained, Calculating the residual and classification by the distance scales, Using double color variables express spatial distribution of estimate error degree in the map, The residual distribution reflects the deviation degree between the actual value and experlence,it also reflects spatial distribution regularities, it can be used to analysze the causes for residuals, provide the correlation reference of dicision.