covmatrix.m

最新推荐文章于 2023-03-05 10:33:17 发布

大白菜丫丫

最新推荐文章于 2023-03-05 10:33:17 发布

阅读量1.4k

点赞数

本文介绍了一个MATLAB源程序，用于计算向量群体的协方差矩阵和平均向量。该程序适用于组织为矩阵X的行向量群体，其中C是N×N大小的协方差矩阵，M是N×1大小的平均向量。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

%covmatrix源程序
function [C, m] = covmatrix(X) 
%COVMATRIX Computes the covariance matrix of a vector population. 
%   [C, M] = COVMATRIX(X) computes the covariance matrix C and the 
%   mean vector M of a vector population organized as the rows of 
%   matrix X. C is of size N-by-N and M is of size N-by-1, where N is 
%   the dimension of the vectors (the number of columns of X). 
 
%   Copyright 2002-2004 R. C. Gonzalez, R. E. Woods, & S. L. Eddins 
%   Digital Image Processing Using MATLAB, Prentice-Hall, 2004 
%   $Revision: 1.4 $  $Date: 2003/05/19 12:09:06 $ 
 
[K, n] = size(X); 
X = double(X);