对逐差法拟合直线的讨论  

Discussion about the linear fitting by successive differential method

作　　者：高永祥[1] 

机构地区：[1]山西大学物理电子工程学院,山西太原030006

出　　处：《大学物理》2010年第11期31-34,共4页College Physics

摘　　要：分析了逐差法的特性,揭示出其本质是一种加权最小二乘法,对逐差法的不同见解以及运用中存在的问题进行了讨论.The characteristic of successive differential method is analyzed. It is opened out that which is really a kind of weighted least square method. Various opinions and problems for the method are discussed.

关 键 词：逐差法 加权最小二乘法 方差 权函数 

分 类 号：O241.5[理学—计算数学]