title: Draw the profile of a scatter plot
body: <p>I have a scatter plot of Lc and Fc values (please, refer to plot1).</p>
  <pre><code>Lc= [360.66832393 388.26294316 392.9410819  ... 384.31751584 403.52581547
   384.22929343]
  
  Fc= [77.3294787  47.5926941  44.53032575 ... 50.44012265 38.99666318
   50.54763385]
  
  plot.scatter(Lc, Fc)
  </code></pre>
  <p>I would like to draw the Fc profile of this scatter plot as shown in plot2. Does anyone have an efficient way to do it?</p>
  <p><a href="https://i.stack.imgur.com/PNybC.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/PNybC.png" alt="plot1" /></a></p>
  <p><a href="https://i.stack.imgur.com/71vpj.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/71vpj.png" alt="plot2" /></a></p>