title: Python seaborn.distplot returning count instead of probability
body: <p>I have a <code>pandas</code> series <code>x</code>:</p>
  
  <pre><code>0      -0.000069
  1      -0.000059
  2      -0.000025
  3      -0.000021
  4      -0.000021
            ...   
  1036    0.000032
  1037    0.000033
  1038    0.000052
  1039    0.000055
  1040    0.000092
  Name: c, Length: 1041, dtype: float64
  </code></pre>
  
  <p>I would like to plot a probability density function with histogram, in which I used <code>seaborn.distplot</code>:</p>
  
  <pre><code>import matplotlib.pyplot as plt
  import seaborn as sns
  
  sns.distplot(x, hist=True, kde=True, bins=100,
               hist_kws={'edgecolor':'black', 'color': 'r'},
               kde_kws={'linewidth': 1, 'color': 'b'})
  
  plt.xlim(-0.00002, 0.00002)
  plt.ylim(ymin=0)
  plt.xlabel("x")
  plt.ylabel("probability")
  plt.ticklabel_format(style='sci', axis='x', scilimits=(0,0))
  
  plt.show()
  </code></pre>
  
  <p>As a result, I get the following figure:</p>
  
  <p><a href="https://i.stack.imgur.com/AiPOz.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/AiPOz.png" alt="enter image description here"></a></p>
  
  <p>As shown, the vertical axis represents count, but instead I want (and expected from this code) probability. I am quite confused, as the identical code works properly for another <code>pandas</code> series. For example, with the identical code with different series (and different labels, etc.), I was able to produce the following correct figure:</p>
  
  <p><a href="https://i.stack.imgur.com/EpuFM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/EpuFM.png" alt="enter image description here"></a></p>
  
  <p>Any idea why this code isn't working for my first series, and/or possible solutions?</p>