主成分分析的matlab代码
PCA如何来进行降维%%Thisscriptgeneratesandplots3Ddata,andperformsaprincipal%%componentanalysistodecorrelatethedata,andtoreducethe%%dimensionalityofthefeaturespace.%NotethatmatlabhasanoptimizedfunctiontoperformPCA:princomp()%However,inthisscriptweperformPCAmanuallybycalculatingthe%eigen
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这个只是用来演示pca过程的
值得参考，较详细