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曲线拟合
- （1）利用多项式拟合的两个模块程序求解下题： 给出 x、y的观测值列表如下： x 0 1 2 3 4 5 y 2.08 7.68 13.8 27.1 40.8 61.2 试利用二次多项式y=a0+a1x+a2x2进行曲线拟合。 （1）多项式拟合方法：假设我们收集到两个相关变量x、y的n对观测值列表： x x0 x1 x2 x3 x4 x5 y y0 y1 y2 y3 y4 y5 我
向量旋转及一维线性回归、相关系数
- 向量按照给定角度旋转后新坐标、计算x--y数据线性拟合系数及相关系数。
polyfit2d.rar
- 根据已知的三维离散数据（x,y,z）,在MATLAB中利用此函数进行三维曲面拟合，再根据polyval2d得出拟合函数的系数矩阵。,according to 3D discrete datum (x,y,z),use this function in MATLAB to fit 3D surface, and use polyval2d to get coefficient matrix
FitPlane
- 采用最小二乘的方法，根据平面的坐标方程，拟合出空间平面的方程的各个系数，如有疑问请上： buaagc.blog.163.com-Using least squares method, according to the coordinates of plane equation, fitting two-dimensional space of all coefficient equation, If you have any questions, go to buaagc.blog.163.
CubicSpline
- 根据给定点和区间值得出三次样条拟合方程的系数-According to a given point and interval should be a cubic spline fitting coefficient
Project1
- 用VB编写的多项式拟合程序 Public Function funPolynomial(Num As Long, x() As Single, y() As Single, Degree As Integer, AA() As Single) As Long 多项式曲线拟合 y=a0+a1*x+a2*x^2+an*x^n Num为输入数据点个数 x()为输入数据点横坐标组成的数组 y()为输入数据点纵坐标组成的数组 Degree为要拟合的多项式曲线次数 A
test6
- matlab实验 用给定的多项式，y=x3-6x2+5x-3，产生一组数据(xi,yi，i=1,2,…,n),再在yi上添加随机干扰(可用rand产生(0,1)均匀分布随机数,或用rands产生N(0,1)分布随机数)，然后用xi和添加了随机干扰的yi作的3次多项式拟合，与原系数比较。 如果作2或4次多项式拟合，结果如何？ -matlab experiment with a given polynomial, y = x3-6x2+5 x-3, generated a set of da
eigen
- 此程序为用matlab编写的基于最小二乘法通过求解广义矩阵特征值及特征向量进行椭圆曲线拟合程序。 程序中x,y分别为采样点的横纵坐标。生成的结果矩阵为椭圆曲线aX^2+bXY+cY^2+dX+eY+f=0中的各项系数。-This program was written with matlab by solving the generalized least square method based on matrix values and eigen vectors of the ellipt
quxiannihe
- 最小二乘曲线拟合 可以拟合曲线 得到所拟合的系数 GUI界面-least-square Curve fitting
polyorder
- 最小二乘拟合，求多项式系数，包括建立误差方程、误差方程法化，迭代求解-Least squares fitting of a polynomial coefficient, including the establishment of error equation, the error equation, iterative solving
Phase
- 利用zernike多项式系数拟合波前，采用的是zernike边缘多项式，有36项(Fitting wavefront using Zernike polynomial)
滚动阻力系数拟合
- 汽车滚动阻力系数f值的大小，标志着汽车行驶中滚动阻力的大小。基于试车道路滑行试验数据，采用滑行试验法计算汽车的滚动阻力系数。分析过程通过matlab编程实现。(the size of Car rolling resistance coefficient f value marks the size of the car driving rolling resistance. Based on the test data of the car road gliding, the rolling r
MATLAB实现线性拟合和相关系数 源程序代码
- Matlab源程序：可以实现线性拟合相关系数(Matlab source: linear correlation coefficient can be achieved)
POLYFIT
- 用k次多项式拟合向量数据(x,y)并返回多项式的降幂系数。(The vector data (x, y) are fitted by k-degree polynomials and the power factor of the polynomial is returned.)
最小二乘法拟合
- %最小二乘法下用a*sin（x）+b*cos（x）拟合下列散点坐标 %求出拟合系数a，b和方差Dx(The least square method is used to fit the following scatter coordinates with a*sin (x) +b*cos (x) The fitting coefficients a, B and variance Dx were calculated)
polynomial model
- 使用多项式拟合非线性曲线，对多项式系数进行参数辨识(The polynomial coefficients are identified by using polynomial fitting nonlinear curves.)
MATLAB 求最小二乘法系数
- 用MATLAB进行三次曲线的拟合，并运用最小二乘法求各个系数，得出曲线方程(The three curves are fitted with MATLAB, and the coefficients are obtained by using the least square method, and the curve equation is obtained.)
zernike
- 计算泽尼克多项式和具有一致相合函数的泽尼克拟合系数(Zernike polynomials are orthogonal on the unit circle and are commonly used in optics for phase aberrations. Use zernike_fcn3.m to generate Zernike polynomials. Input includes a vector of the desired polynomials; these do n
曲线拟合
- 最小二乘法实现曲线拟合，返回拟合多项式系数(Least Squares Method for Curve Fitting)
多项式和非多项式曲线拟合
- 多项式拟合在matlab中可以使用ployfit函数求解多项式系数，通过ployval函数求解拟合多项式在某数据点处的值(Polynomial and Non-polynomial Curve Fitting)