title: Python; Matplotlib: Set boundaries of Bins to integer values
body: <p>I m drawing a histogram with matplot and I m wondering whether it is possible to set set boundaries of each bin to an integer value. Because if I interpret the Output values of my Plotting correctly it looks like that it is using floats. 
  Input:</p>
  
  <pre><code>plt.figure(figsize=(10,8))
  (n, bins, patches) = plt.hist(counts.store_id.values, bins=10, rwidth=0.8)
  </code></pre>
  
  <p>Output for bins:    </p>
  
  <pre><code>[   1.    66.2  131.4  196.6  261.8  327.   392.2  457.4  522.6  587.8 653. ]
  </code></pre>
  
  <p>Anyone has an idea? And is it possible to set the boundaries manually?</p>
  
  <p>Thx! </p>