主成分分析法实现特征选择，里面有非常详细的算法介绍，还有一个现实实例介绍，非常具象，里面贴有实现算法的matlab代码-Principal component analysis （PCA）to achieve feature selection , which has a very detailed descr iption of algorithms , there is a real example to illustrate , very concrete , which is affix

斯坦福大学深度学习，PCA主成分分析的补充完的代码-PCA principal component analysis of deep learning at Stanford, added the code

主成分分析代码，里面可以绘画出几个主成分的贡献，比较简单容易理解-Principal component analysis code, which can contribute to painting a few main components, relatively simple and easy to understand

此代码基于主成分分析的角度对原数据进行主成分分析，有效的降低了分析的难度和分析的时间(This code based on principal component analysis of the original data of the principal component analysis, effectively reducing the analysis of the difficulty and analysis of time)