title: How to plot contour of a covariance matrix of a gaussian distribution?
body: <p>I just want to ask how you can plot the contour of covariance of a Gaussian, say covariance of <code>[513.5211 -160.7084; -160.7084 808.8846]</code>.</p>
  
  <p>For example</p>
  
  <p><img src="https://i.stack.imgur.com/Dvgy5.jpg" alt="This"></p>
  
  <p>The gaussian points are red and the covariance is represented by the blue dotted circle. How can I plot the plot dotted circle (covariance matrix) in Matlab?.</p>
  
  <p><strong>EDIT</strong></p>
  
  <p>Here is what I have done</p>
  
  <pre><code>Sigma = Cov(X);
  Contour(Sigma);
  </code></pre>
  
  <p>Any idea?</p>