一种多因子相关计算方法  

A Robust Computation Method of the Correlated Multi-factor

作　　者：陈乐湘[1] 钮本良[2] 陆宝宏[1] 裘庆芗[1] 

机构地区：[1]河海大学水文水资源及环境学院,江苏南京210098 [2]黄河水利职业技术学院,河南开封475001

出　　处：《水文》2002年第4期22-24,共3页Journal of China Hydrology

摘　　要：采用分析与图解相结合的方法解决多因子非线性相关计算,求回归方程问题。先从多个因子中找出对倚变量影响最大的一个因子,作单相关曲线,求残差;再从余下的因子中找出对残差影响最大的因子,作相关曲线,求残差,直到剩余各因子对残差影响相当;最后用剩余因子线性分解残差,从而求得多因子非线性回归方程。Analysis associated with plotting methods to search for the regression equation of the correlated multi-factor was presented in the paper.To get the regression equation,the most important factor combined with its correlation graph solution was gradually used.By the comparison of the residual error between each observed and computed result,the correlation equation of multi-factor can be obtained.

关 键 词：多因子线性相关 多因子非线性相关 回归方程 水文计算 残差 

分 类 号：P333.9[天文地球—水文科学]