X = mat_cell;
[counts,binLocations] = imhist(X); stem(binLocations, counts, 'MarkerSize', 1 ); xlim([-1 1]); % inital kmeans step used to initialize EM
K = 2; % number of mixtures/clusters
rng('default'); cInd = kmeans(X(:), K,'MaxIter', 75536); % fit a GMM model
options = statset('MaxIter', 75536); gmm = fitgmdist(X(:), K,'Start',cInd,'CovarianceType','diagonal','Regularize',1e-5,'Options',options);
Here X is the input matrix and I would like to initialize only the sigma parameter of the GMM to zero. How can i proceed?
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