title: Plotting correlation scatter matrix plot in Julia
body: <p>I would like to plot data in a particular <code>DataFrame</code> obtained from <code>RDataests</code>,</p>
  
  <pre><code>julia&gt; prestige = dataset("car", "Prestige")
  </code></pre>
  
  <p>The <code>DataFrame</code> consists of various columns, but I am interested in plotting three of them viz. <code>Prestige</code>, <code>Income</code> and <code>Education</code>. I would like to have a matrix of scatter plots, like the one obtained using <code>R</code> as shown below,</p>
  
  <p><a href="https://i.stack.imgur.com/iO2yy.png" rel="noreferrer"><img src="https://i.stack.imgur.com/iO2yy.png" alt="enter image description here"></a></p>