特征降维的方法:PCA,LDA

转载两篇文章吧,写的很透彻,高手啊。

PCA:https://www.cnblogs.com/pinard/p/6239403.html

LDA:https://www.cnblogs.com/pinard/p/6244265.html

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转载自blog.csdn.net/gbz3300255/article/details/108882886