KnowraPrincipal component analysisLinked fromLinked fromThe 28 pages that link to Principal component analysis, each with the reason it gives.All 28Broader topic 2Related 23Compared with 3Linear algebraBroader topic: It uses eigenvectors of a covariance matrix to reduce data dimensions.Symmetric matrixBroader topic: Its covariance matrix is symmetric and its eigenvectors give principal directions.