title: Subtitle for Subplots within for-loop
body: <p>I have the following code to create a 9x3 plot of 27 subplots:</p>
  
  <pre><code>fig, axes = plt.subplots(9,3,figsize=(30,80))
  for ax, df in zip(axes.flat, [district_1_change, district_2_change, district_3_change, 
                                district_4_change, district_5_change, district_6_change, 
                                district_7_change, district_8_change, district_9_change, 
                                district_10_change, district_11_change, district_12_change, 
                                district_13_change, district_14_change, district_15_change, 
                                district_16_change, district_17_change, district_18_change, 
                                district_19_change, district_20_change, district_21_change, 
                                district_22_change, district_23_change, district_24_change, 
                                district_25_change, district_26_change, district_27_change
                               ]):
      df[['DEM', 'REP', 'CON', 'WOR', 
                     'IND', 'GRE', 'WEP', 'REF', 'OTH', 'BLANK']].plot.bar(ax=ax,
                                                             legend=False,
  #                                                            figsize=(8, 6),
                                 color=['xkcd:blue',
                                                                            'xkcd:red',
                                                                            'xkcd:dark red',
                                                                            'xkcd:light blue',
                                                                            'xkcd:purple',
                                                                            'xkcd:green',
                                                                            'xkcd:pink',
                                                                            'xkcd:lilac',
                                                                            'xkcd:orange',
                                                                            'xkcd:brown'])
  plt.tight_layout();
  </code></pre>
  
  <p>I want to add titles to each subplot.  I have consulted this <a href="https://stackoverflow.com/questions/25239933/how-to-add-title-to-subplots-in-matplotlib">previous SO question</a> but when I try to do something like: </p>
  
  <pre><code>ax = plt.subplot("931")
  ax.set_title("District 1")
  </code></pre>
  
  <p>the data in that subplot is then erased, however, the title shows up.  I would like the data and the title to both show.</p>