摘要
用方差比和广义方差比作为影响度量,从估计效率角度研究数据的剔除对加权回归模型的影响.建立了这两个影响度量与相关系数和广义相关系数之间的精确关系.
The ratio of variance and generalized variance are used as the influence measures to examine the influence of data rejecting on weighted regression model from the point of efficiency of estimate. The relations between the two influence measures and correlation coefficient and generalized correlation coefficient are built.
出处
《菏泽学院学报》
2005年第2期7-9,63,共4页
Journal of Heze University
关键词
枷权回归模型
方差比
相关系数
广义方差比
广义相关系数
Weighted regression model
ratio of variance
correlation coeffticient
generalized variance ratio
generalized correlution coefficient
