title: Finding the indexes of the N maximum values across an axis in Pandas
body: <p>I know that there is a method .argmax() that returns the indexes of the maximum values across an axis.</p>
  
  <p>But what if we want to get the indexes of the 10 highest values across an axis? </p>
  
  <p>How could this be accomplished?</p>
  
  <p>E.g.:</p>
  
  <pre><code>data = pd.DataFrame(np.random.random_sample((50, 40)))
  </code></pre>