搜索资源列表
Allan
- 计算MEMS陀螺的Allan方差,并求出与Allan方差相关的五个系数,最后在求出拟合误差-Allan variance calculation of MEMS gyroscope, and find the Allan variance associated with the five factors, and finally find the fitting error
pp
- 最小二乘法曲线拟合程序,输出有拟合误差,拟合曲线的系数-Least-squares curve fitting procedure, the output error with fitting, curve fitting coefficient
zernike
- 镜片面形数据通过zernike多项式用协方差方法拟合得到的zernike系数-Zernike coefficients covariance fitting
circfit
- 用于拟合圆心坐标及求取包络半径,式中半径R求取需根据需求更改系数。-Use for fitting the circle center and calculate the radius, the variables of R can be changed by the parameter in consider of your meet.
u-6
- 涡度通量数据处理,坐标旋转之平面拟合坐标旋转,系数计算-Eddy flux data processing, the rotation of the coordinate plane fitted coordinate rotation, coefficient
nisannihe
- 运用离散分布函数拟合数据,通过变异系数的平方和可决系数选择最佳模型-Using a discrete distribution function to fit the data, the best model by squaring and the coefficient of variation coefficient of determination
linear
- 线性拟合小程序,能够计算出拟合函数及相关系数-Linear fit small program that can calculate the fit function and the correlation coefficient
DEM内插
- DEM内插就是根据参考点上的高程求出其他待定点上;(1)根据实际内插要求,解算待定点P的平面坐标(;(2)为了选取邻近的数据点,以待定点P为圆心,以;由于二次曲面系数个数为6,要求选用的数据点个数n;满足要求;vi=Ax2+Bxy+Cy2+Dx+Ey+F-Z;由n个数据点列出的误差方程为v=MX-Z;(Is inserted according to the elevation reference point for other fixed point DEM; (1) according to
ridge regression1
- 岭回归(英文名:ridge regression, Tikhonov regularization)是一种专用于共线性数据分析的有偏估计回归方法,实质上是一种改良的最小二乘估计法,通过放弃最小二乘法的无偏性,以损失部分信息、降低精度为代价获得回归系数更为符合实际、更可靠的回归方法,对病态数据的拟合要强于最小二乘法。 总之,本文档是岭回归的R语言实现代码,主要用于解决当模型中出现多重共线性问题,尤其是当你所有的解释变量都很重要,又无法通过其他检验来删除时,岭回归是一个很好的解决办法。(Ridge
一元线性回归
- 包括基于矩阵运算计算回归系数并添加趋势线,基于多项式拟合计算回归系数并添加趋势线,借助回归分析程序包计算回归系数并估计检验统计量,及预测和各统计量。(Including the regression coefficient and add the trend line calculation based on matrix computation, polynomial fitting to calculate the regression coefficient and add the tre
Untitled
- 将数据点按多项式的形式进行拟合,使用最小二乘法,可以确定多项式的系数。(The data points according to the form of polynomial fitting, using the least square method, the coefficient of polynomial can be determined.)
rfs
- 恢复力曲面法对杜芬方程的三次项系数进行拟合(Restoring Force Surface)
Stata vif
- 多重共线性的检验:不显著系数法、拟合优度检验、方差膨胀因子;修正:前进法、后退法。(Inspection and correction of multicollinearity)
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.)
MLS
- MLS(移动最小二乘) 1.拟合函数的建立不同。这种方法建立拟合函数不是采用传统的多项式或其他函数,而是通过系数向量和基函数来决定在某个x处的值。 2.引入紧支的概念,认为在x处的值y只受到x附近子域内的节点的影响。这个子域称作是x的影响区域,影响区域外的节点对x处的取值没有影响。影响区域内的每个节点对x处的取值的影响是不一样的。所以需要一个权函数来定义每个节点的影响。(MLS (Moving Least Squares) July 25, 2018 15:42:20 blank_downdo
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)
Copula
- 获得对应Copula函数的LL\AIC\BIC值并选择最佳拟合函数,得到拟合系数值,绘制相关系数图形。(Obtain the ll \ AIC \ BIC value of the corresponding copula function and select the best fitting function to obtain the fitting coefficient value and draw the correlation coefficient graph.)