title: Connect line of scatter plot on pandas DataFrame
body: <p>I'd like to add lines between dots of a scatter plot drawn by pandas. I tried this, but does not work. Can I put lines on a scatter plot?</p>
  
  <pre><code>pd.DataFrame([[1,2],[10,20]]).plot(kind="scatter", x=0, y=1, style="-")
  pd.DataFrame([[1,2],[10,20]]).plot.scatter(0,1,style="-")
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/EYmhX.png" rel="noreferrer"><img src="https://i.stack.imgur.com/EYmhX.png" alt="enter image description here"></a></p>