特征降维

代码说明：

说明：  针对大数据信号处理时的特征选择与特征降维，给出了4种有效的特诊选择方法(feature Selection Aiming at feature selection and feature dimensionality reduction during big data signal processing, four effective special diagnosis selection methods are given)

文件列表：

特征降维\pca.m, 7253 , 2011-12-29
特征降维\PCAtest.m, 1602 , 2012-01-03
特征降维\sbs.m, 3216 , 2020-05-24
特征降维\selcol.m, 425 , 2011-12-26
特征降维\sffs.m, 5852 , 2020-05-24
特征降维\sfs.m, 2415 , 2020-05-24
特征降维, 0 , 2020-05-24