title: Min and max values in seaborn violinplot are invalid
body: <p>I'm plotting the distribution of daily returns from stock index in a particular year using seaborn violinplot. However some extreme values on the chart looks to be plotted improperly. </p>
  
  <p>The chart below is an example for one year. As you can see the lowest value for 'Piątek' is something near -6. </p>
  
  <pre><code>sns.violinplot( x=wig20.iloc[1500:1751,3], y=wig20.iloc[1500:1751,2], width=1, order=['Poniedziałek','Wtorek','Środa','Czwartek','Piątek'])
  </code></pre>
  
  <p><img src="https://i.ibb.co/HdZL38G/Przechwytywanie.png" alt="Example"></p>
  
  <p>Data looks like: </p>
  
  <pre><code>wig20.iloc[1500:1751,0:4].head()
  
             Date      wig20     [%]       weekday
  1500    2016-01-04  1804.42 -2.943818   Poniedziałek
  1501    2016-01-05  1792.01 -0.687756   Wtorek
  1502    2016-01-07  1745.46 -2.597642   Czwartek
  1503    2016-01-08  1725.14 -1.164163   Piątek
  1504    2016-01-11  1703.78 -1.238160   Poniedziałek
  </code></pre>
  
  <p>However when i checked the data i can see </p>
  
  <pre><code>wig20.iloc[1500:1751,2].min()
  
  -4.533610974747937
  </code></pre>
  
  <p>So the chart is completely missleading. On the chart above the low for 'Piątek' is definitely below -5. I checked diffrent years and it seems that every max/min value of more than 4 is near the 6 on the chart and i have no clue why it is that way.  </p>