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I use fitgmdist to get the Gaussian distribution. Then I draw a contour plot of the distribution using fcontour . The problem is that I don't understand at klpq(i,:) = mvnpdf([repmat(x1(i),n2,1),x2],mu,SigmaKLb);. end. figure;. % (a). hold on;. contour(x1,x2,f,'b'); %'g',4,'linewidth',3);. contour(x1,x2,klqp,Generate random numbers from the distribution using mvnrnd . Evaluate the probability density function (pdf) at specific values using mvnpdf . Evaluate the The equidensity contours of a non-singular multivariate normal distribution are ellipsoids (i.e. linear transformations of hyperspheres) centered at the