title: Resizing a single subplot in matplotlib
body: <p>I'm having trouble trying to resize one of my subplots in matplotlib. Basically I have four plots and I would like the to be about 1.5 the size of the others. </p>
  
  <p>I'm also having trouble trying to gives a legend for the top subplot. I would like it to specify each colour as 1, 2, 3, 4, or 5 (Please see image).</p>
  
  <p>This is my code for the plotting function</p>
  
  <pre><code>def plot_data(avg_rel_track, sd_rel_track_sum, sd_index, sd_grad):
  
      fig, (ax0, ax1, ax2, ax3) = plt.subplots(nrows=4, figsize=(15,10))
      fig.subplots_adjust(top=0.85)
      ax0.plot(avg_rel_track_nan)
      if len(sd_index)!=0:
          if len(sd_index)&gt;1:
              for i in range(1, len(sd_index)):
                  if sd_grad[i]==1:
                      ax0.axvspan(sd_index[i-1],sd_index[i], edgecolor='#FFCC66', facecolor='#FFCC66', alpha=1)
      #The following plot has 5 plots within it.
      ax0.set_title('Averaged Relative Track',fontsize=11)
      ax0.set_ylim(auto=True)
  
      ax1.plot(sd_rel_track_sum)
      ax1.set_title('RT Standard Deviation',fontsize=11)
      ax1.set_ylim([0,250])
  
      ax2.plot(splitpre)
      ax2.set_title('Track Split',fontsize=11)
  
      ax3.plot(ts_sd)
      ax3.set_title('Track Split Standard Dev',fontsize=11)
      ax3.set_ylim([0,100])
  
      fig.tight_layout()
      plt.show()
  </code></pre>
  
  <p>I am struggling to find a way to resize without changing the whole way the function is written. I can't seem to find the documentation for 'subplots'.</p>
  
  <p>Also to my understanding you must add a 'label' to your plot in order to create a legend. However, all the data  to the top subplot is plotted at the same time?</p>
  
  <p><img src="https://i.stack.imgur.com/ePRFE.jpg" alt="The plot"></p>