Description: PCA and PLS aims:to get some
insight into the bilinear factor models Principal Component Analysis
(PCA) and Partial Least Squares (PLS) regression, focusing on the
mathematics and numerical aspects rather than how s and why s of
data analysis practice. For the latter part it is assumed (but not
absolutely necessary) that the reader is already familiar with these
methods. It also assumes you have had some preliminary experience
with linear/matrix algebra. Platform: |
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Author:郭大 |
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Description: PRINCIPLE: The UVE algorithm detects and eliminates from a PLS model (including from 1 to A components) those variables that do not carry any relevant information to model Y. The criterion used to trace the un-informative variables is the reliability of the regression coefficients: c_j=mean(b_j)/std(b_j), obtained by jackknifing. The cutoff level, below which c_j is considered to be too small, indicating that the variable j should be removed, is estimated using a matrix of random variables.The predictive power of PLS models built on the retained variables only is evaluated over all 1-a dimensions =(yielding RMSECVnew). Platform: |
Size: 3072 |
Author: |
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Description: 这个小程序可以简单的选取回归分析中box-cox变换的lambda值，通过matlab强大的矩阵运算功能可以通过简单比较RSS值的方式来得到lambda，使用时只需要输入实验值矩阵X和Y即可，然后输入minRSS（X，Y）就能简单明了的看到最优变换参数
（这个程序虽然小但是学习回归分析的初学者学习时都会经过这个算法，上载时因为不到1KB所以我又放了个文本格式的）-This little program can select a simple regression analysis of box-cox transformation of lambda values, through the powerful matlab function matrix calculation can be relatively simple way of RSS to get the value of lambda, the use of only need to enter the experimental data matrix X and Y can be , and then enter the minRSS (X, Y) will be able to see the simple optimal transformation parameters Platform: |
Size: 1024 |
Author:片羽的精灵 |
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Description: Performs hierarchical clustering of data using specified method and
seraches for optimal cutoff empoying VIF criterion suggested in "Okada Y. et al - Detection of Cluster Boundary in Microarray Data by Reference to MIPS Functional Catalogue Database (2001)".
Namely, it searches cutoff where groups are independent. The techinque uses an econometric approach of verifying that variables in
multiple regression are linearly independent: if all the diagonal
elements of inverse correlation matrix of data are less than VIF-Performs hierarchical clustering of data using specified method and
seraches for optimal cutoff empoying VIF criterion suggested in "Okada Y. et al- Detection of Cluster Boundary in Microarray Data by Reference to MIPS Functional Catalogue Database (2001)".
Namely, it searches cutoff where groups are independent. The techinque uses an econometric approach of verifying that variables in
multiple regression are linearly independent: if all the diagonal
elements of inverse correlation matrix of data are less than VIF Platform: |
Size: 2048 |
Author:tra ba huy |
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Description: 使用matlab进行数值分析时重要的参考资料，具体包含内容可以看英文描述-This text is written primarily for students/readers who have a good background of high school algebra, geometry, trigonometry, and the fundamentals of differential and integral calculus. This text includes the following chapters and appendices: . Introduction to MATLAB . Root Approximations . Sinusoids and Complex Numbers . Matrices and Determinants . Review of Differential Equations . Fourier, Taylor, and Maclaurin Series . Finite Differences and Interpolation . Linear and Parabolic Regression . Solution of Differential Equations by Numerical Methods . Integration by Numerical Methods . Difference Equations . Partial Fraction Expansion . The Gamma and Beta Functions . Orthogonal Functions and Matrix Factorizations . Bessel, Legendre, and Chebyshev Polynomials . Optimization Methods . Difference Equations in Discrete Time Systems . Introduction to Simulink . Ill Conditioned Matrices Each chapter contains numerous practical applications supplemented with detailed instructions for using Platform: |
Size: 3432448 |
Author:何亮 |
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Description: Mahalanobis距離是一個可以準確找出資料分布上面極端值(Outliers)的統計方法,使用線性迴歸的概念,也就是說他使用的是共變數矩陣以及該資料分布的平均數來找尋極端值的產生,而可以讓一群資料系統具有穩健性(Robust),去除不必要的雜訊訊息,這邊拿前面共變數矩陣的資料為例,並且新增了兩個點座標向量來做Mahalanobis距離的比較-Mahalanobis distance is the information that can accurately identify the distribution of the above extreme values (Outliers) statistical methods, the concept of using a linear regression, meaning that he used the covariance matrix and the distribution of the information to find the extreme values of the average production of , but can allow a group of information systems with the robustness (Robust), removing unnecessary noise message here get in front of the data covariance matrix, for example, and added two points, coordinates of vectors to do comparison of Mahalanobis distance Platform: |
Size: 1024 |
Author:nip |
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Description: 一种车牌图像校正新方法
【摘要】因摄像机角度而造成的机动车牌图像倾斜会对其后继的字符分割与识别带来不利的影响。本文在分析了车牌倾斜模式的基础上,提出了一种基于最小二乘支持向量机（LS-SVM）的车牌图像倾斜校正新方法。通过LS-SVM线性回归算法求取坐标变换矩阵并对畸变图像进行旋转校正。主要方法：首先,将二值倾斜车牌图像中的像素转换为二维坐标样本,并构造图像数据集 再通过LS-SVM线性回归算法对该数据集进行回归,求取主要参数 最后,再由该参数转换为能反映图像倾斜方向的2维坐标变换矩阵。实验结果表明,该方法简便实用,对光照、污迹等不敏感,抗干扰能力强。-New Method of a license plate image correction
Abstract caused due to camera angles, the image tilt motor vehicle license will have on its subsequent recognition of characters segmentation and adverse effects. Based on the analysis of the inclined plate model based on proposed based on least squares support vector machine (LS-SVM) of the license plate Skew new approach. By LS-SVM linear regression algorithm to strike a coordinate transformation matrix and rotate the image distortion correction. Main methods: First, the value of the two inclined plate in the image pixel is converted to two-dimensional coordinates of the sample, and construct the image data sets then the linear regression through the LS-SVM regression algorithm for the data set to strike a key parameter final , and then by the parameter is converted to reflect the tilt direction of two-dimensional image coordinate transformation matrix. The experimental results show that the method is simple and practical, to light, Platform: |
Size: 301056 |
Author:Leo |
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Description: matlab code that does singular value decomposition of some data set and denoises the data matrix. after denoising, regression is performed Platform: |
Size: 27648 |
Author:sindhu |
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Description: this package contain: five matlab function and one script.
XOX_OLS: is Common ols regression function that print out results just like Eviews Program.
XOX_PanelFix: is Common fix effect panel data regression function that print out results just like Eviews.
XOX_PanelRandom: is Common random effect panel data regression function that print out results just like Eviews.
XOX_print: is the function for print an matrix in formatted form for panel data results.
XOX_FuzzyRegression: is a fuzzy linear regression model function that based on triangle membership function.
XOX_ANFIS: is an escript to explain prediction using TAKAGI-SUGENU adaptive neural based inference system.-this package contain: five matlab function and one script.
XOX_OLS: is Common ols regression function that print out results just like Eviews Program.
XOX_PanelFix: is Common fix effect panel data regression function that print out results just like Eviews.
XOX_PanelRandom: is Common random effect panel data regression function that print out results just like Eviews.
XOX_print: is the function for print an matrix in formatted form for panel data results.
XOX_FuzzyRegression: is a fuzzy linear regression model function that based on triangle membership function.
XOX_ANFIS: is an escript to explain prediction using TAKAGI-SUGENU adaptive neural based inference system. Platform: |
Size: 10240 |
Author:xox |
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Description: 利用自然梯度算法，基于chebyshev的水声信号分析，包括回归分析和概率统计，是路径规划的实用方法，用于建立主成分分析模型，供做算法研究人员参考，最终的权值矩阵就是滤波器的系数，现代信号处理中谱估计在matlab中的使用。- Use of natural gradient algorithm, Based chebyshev underwater acoustic signal analysis, Including regression analysis and probability and statistics, Is a practical method of path planning, Principal component analysis model for establishing, Algorithm for researchers to do reference, The final weight matrix is ??the filter coefficient, Modern signal processing used in the spectral estimation in matlab. Platform: |
Size: 7168 |
Author:rawhe |
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Description: matlab小波分析程序，利用贝叶斯原理估计混合logit模型的参数，包括回归分析和概率统计，LCMV优化设计阵列处理信号，进行逐步线性回归，时间序列数据分析中的梅林变换工具，最终的权值矩阵就是滤波器的系数，matlab编写的元胞自动机。- matlab wavelet analysis program, Bayesian parameter estimation principle mixed logit model, Including regression analysis and probability and statistics, LCMV optimization design array signal processing, Stepwise linear regression, Time series data analysis Mellin transform tool, The final weight matrix is ??the filter coefficient, matlab prepared cellular automata. Platform: |
Size: 6144 |
Author:gymgg |
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Description: 考虑雨衰 阴影 和多径影响，基于负熵最大的独立分量分析，最终的权值矩阵就是滤波器的系数，用MATLAB实现的压缩传感，最大信噪比的独立分量分析算法，进行逐步线性回归。- Consider shadow rain attenuation and multipath effects Based on negative entropy largest independent component analysis, The final weight matrix is ??the filter coefficient, Using MATLAB compressed sensing, SNR largest independent component analysis algorithm, Stepwise linear regression. Platform: |
Size: 9216 |
Author:qpbmfb |
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Description: 最终的权值矩阵就是滤波器的系数，一个很有用的程序，在MATLAB中求图像纹理特征，包括AHP，因子分析，回归分析，聚类分析，有循环检测，周期性检测，实现串口的数据采集，相参脉冲串复调制信号。- The final weight matrix is ??the filter coefficient, A very useful program, In the MATLAB image texture feature, Including AHP, factor analysis, regression analysis, cluster analysis, There are cycle detection, periodic testing, Achieve serial data acquisition, Complex modulation coherent pulse train signal. Platform: |
Size: 5120 |
Author:mtzrq |
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Description: 内含心电信号数据及运用MATLAB写的源代码，最终的权值矩阵就是滤波器的系数，包括AHP，因子分析，回归分析，聚类分析。- ECG data and includes source code written in MATLAB, The final weight matrix is ??the filter coefficient, Including AHP, factor analysis, regression analysis, cluster analysis. Platform: |
Size: 7168 |
Author:赵晓 |
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Description: Nonlinear discrete system identification, A one-dimensional transfer matrix method to calculate the phonon crystal structure, You can achieve data classification and regression pattern recognition. Platform: |
Size: 4096 |
Author:yaajs
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Description: 基于矩阵运算的多元线性回归分析，基于回归计算程序包的多元线性回归分析等MATLAB程序实现；各检验值齐全(Multivariate linear regression analysis based on matrix operation, multiple linear regression analysis based on regression calculation package) Platform: |
Size: 1024 |
Author:回音笑客
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Description: 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 trend line based on using regression analysis package to calculate the regression coefficient and the estimation of test statistics, and statistics and forecast.) Platform: |
Size: 1024 |
Author:回音笑客
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Search - regression matrix matlab