title: Series' object has no attribute 'order'
body: <p>My code is
  </p>
  
  <pre><code>disagreements = pivoted[pivoted.movie_id.isin(top_50.index)]["diff"]
  disagreements.order().plot(kind="bar", figsize=[10,15])
  </code></pre>
  
  <p>Error is</p>
  
  <pre>
  Series' object has no attribute 'order'
  currently trying this on spider,python3.6. anybody with a solution please
  </pre>