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下面代码为PRML所附的基于混合高斯（MoG）的代码，个人认为编码可读性和风格都值得借鉴。 function [label, model, llh] = mixGaussEm(X, init) % Perform EM algorithm for fitting the Gaussian mixture model. % Input: % X: d x n data matrix % init: k (1 x 1) number of components or label (1 x n, 1