title: How to make distance between two pandas subplots?
body: <p>I have two subplots, but the title of lower suplot <code>Min Price</code> covered the xlabel of the upper subplot. So, how can I make a distance between the two pandas subplots?</p>
  
  <pre><code>mx = df.groupby(['region']).max()['price'].rename(u'Max Price')
  mn = df.groupby(['region']).min()['price'].rename(u'Min Price')
  df_2 = pd.concat([mx, mn], axis=1)
  df_2.index.name = ''
  df_2.plot(kind='bar',subplots=True,legend=False,sharex=False,figsize=(10,5))
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/sNQbW.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/sNQbW.png" alt="enter image description here"></a></p>