PCA
代码说明：
这是关于PCA主成分分析降维，文件夹里有.mat格式的数据文件，里面数据可供测试PCA降维使用。(This is about PCA principal component analysis dimension reduction, folder. Mat data file format, data available for test use PCA dimensionality reduction.)
文件列表：
PCA算法降维成功
...............\pang0.27.mat,22816,2014-03-24
...............\pang0.65.mat,20242,2014-03-24
...............\pang0.75.mat,22987,2014-03-24
...............\pang1.25.mat,26544,2014-03-24
...............\pang1.55.mat,26560,2014-03-24
...............\pang1m.mat,52175,2014-03-24
...............\pca2014_8_3.m,2736,2014-08-05
...............\selcol.m,433,2014-08-05
...............\注意.txt,195,2014-08-05
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