title: how to plot 2 histograms side by side?
body: <p>I have 2 dataframes.  I want to plot a histogram based on a column 'rate' for each, side by side.  How to do it?</p>
  
  <p>I tried this:</p>
  
  <pre><code>import matplotlib.pyplot as plt
  plt.subplot(1,2,1)
  
  dflux.hist('rate' , bins=100) 
  plt.subplot(1,2,2) 
  dflux2.hist('rate' , bins=100) 
  plt.tight_layout() 
  plt.show() 
  </code></pre>
  
  <p>It did not have the desired effect.  It showed two blank charts then one populated chart.</p>