常用Matlab降维软件包包括真实有效的多种降维算法：-PrincipalComponentAnalysis('PCA')-LinearDiscriminantAnalysis('LDA')-Multidimensionalscaling('MDS')-Isomap('Isomap')-LandmarkIsomap('LandmarkIsomap')-LocallyLinearEmbedding('LLE')-LaplacianEigenmaps('Laplac