id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajst-7349	Li, Guowei; Yang, Shanwei; Li, Sai; Wang, Nan; Li, Juan	Research and Application of System-based Clustering and Principal Component Analysis Algorithms	2023	5	.pdf	application/pdf	2454	82	35	Step5.The principal component analysis was performed by matlab code, and then the first, second and third .... corresponding to the eigenvalues whose cumulative contribution of these two categories exceeded 85% were taken respectively The first principal components, and then after determining the principal components, the descriptive and statistical analyses of key variables and data were then performed. 2) After performing principal component analysis, the two classes are then subclassified by using the principal component features as the basis for systematic clustering.	cache/ajst-7349.pdf	txt/ajst-7349.txt