16 lines
430 B
Mathematica
16 lines
430 B
Mathematica
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function probas = probabilites_EM(proportions, moyennes, variances, poids)
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x = 1:255;
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nb_classes = length(poids);
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nb_points = length(x);
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probas = zeros(nb_points, nb_classes);
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sigma = sqrt(variances);
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for k=1:nb_classes
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probas(:,k) = ( proportions(k) * poids(k) / sigma(k) / sqrt(2*pi) ) .* exp( - (x - moyennes(k)).^2 ./ (2*variances(k)) );
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end
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probas = probas ./ sum(probas, 2);
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end
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