最小二乘曲线拟合的MATLAB实现  

The Realization of Curve Fitting with Matlab

作　　者：吕喜明[1] 李明远[1] 

机构地区：[1]内蒙古财经学院统计与数学学院,内蒙古呼和浩特010051

出　　处：《内蒙古民族大学学报（自然科学版）》2009年第2期125-127,共3页Journal of Inner Mongolia Minzu University：Natural Sciences

摘　　要：在MATLAB的Notebook环境下,调用MATLAB的最小二乘曲线拟合命令,求得了拟合函数的多项式系数,并结合可视图形,给出了拟合函数最佳阶数的选取方法.此外,对不超过10阶的曲线拟合给出了图形用户接口程式,使得低阶的拟合更加简单易行、直观明了.Firstly,the polynomial coefficients of fitting function are achieved by calling the least-squares fitting order of MATLAB under the MATLAB Notebook environment. Secondly, the method to select the best order number of fitting function is given combining with visual graphics. In addition, a graphical user interface programs are given to the fitting functions whose polynomial order no more than 10 so that more low-order fitting is simple, intuitive and clear.

关 键 词：曲线拟合 多项式拟合 最小二乘曲线拟合 最佳拟合 图形用户接口 

分 类 号：O22[理学—运筹学与控制论]