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20 lines
582 B
Matlab
20 lines
582 B
Matlab
function visualizeFit(X, mu, sigma2)
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%VISUALIZEFIT Visualize the dataset and its estimated distribution.
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% VISUALIZEFIT(X, p, mu, sigma2) This visualization shows you the
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% probability density function of the Gaussian distribution. Each example
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% has a location (x1, x2) that depends on its feature values.
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%
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[X1,X2] = meshgrid(0:.5:35);
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Z = multivariateGaussian([X1(:) X2(:)],mu,sigma2);
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Z = reshape(Z,size(X1));
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plot(X(:, 1), X(:, 2),'bx');
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hold on;
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% Do not plot if there are infinities
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if (sum(isinf(Z)) == 0)
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contour(X1, X2, Z, 10.^(-20:3:0)');
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end
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hold off;
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end |