title: Draw a point at the mean peak of a distplot or kdeplot in Seaborn
body: <p>I'm interested in automatically plotting a point just above the mean peak of a distribution, represented by a kdeplot or distplot with kde.  Plotting points and lines manually is simple, but I'm having difficulty deriving this maximal coordinate point.</p>
  
  <p>For example, the kdeplot generated below should have a point drawn at about (3.5, 1.0):</p>
  
  <pre><code>iris = sns.load_dataset("iris")
  setosa = iris.loc[iris.species == "setosa"]
  sns.kdeplot(setosa.sepal_width)
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/0lc03.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/0lc03.png" alt="enter image description here"></a></p>
  
  <p>This question is serving the ultimate goal to draw a line across to the next peak (two distributions in one graph) with a t-statistic printed above it.</p>