用matlab实现的主成分分析，线性回归函数-using Matlab achieve the principal component analysis, linear regression function.

利用Matlab编程实现主成分分析,从数学角度来看，这是一种降维处理技术-Using Matlab programming principal component analysis, from a mathematical point of view, this is a dimension reduction process technology

集成了C代码和MATLAB的主成分分析代码，可以用这两种方法解决求取特征值和特征向量。-C code and MATLAB integrates principal component analysis code, you can use two methods to solve strike eigenvalues ​ ​ and eigenvectors.