title: How to get the N highest numbers on an array while keeping original sorting?
body: <p>For instance for N highest numbers, lets say N = 3</p>
  
  <p>I have a and want to get b</p>
  
  <pre><code> a = np.array([12.3,15.4,1,13.3,16.5])
   b = ([15.4,13.3,16.5])
  </code></pre>
  
  <p>Thanks in advance.</p>