Matlab的PCA程序

function varargout = pca(X, N, method) %PCA PRINCIPLE COMPONENTS ANALYSIS % X是n1*n2的，n1是变量个数，n2是样本数 % 返回值p是转换坐标系 N说明投影到N个坐标系上 % p*X 才是投影结果 % Performing principal components analysis on the N1-by-N2 re

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