title: How do I set axis label with column header in gnuplot?
body: <p>My question is very simple. Suppose I have a datafile with column headers, like as follows</p>
  
  <pre><code>first second
  1 1 
  2 1
  3 6
  4 9
  </code></pre>
  
  <p>In gnuplot how do i make it so that the datafile is plotted using the column header as axis label? e.g. by calling</p>
  
  <pre><code>plot datafile using 1:2
  </code></pre>
  
  <p>i get the xaxis labeled <code>first</code> and the yaxis labeled <code>second</code>?</p>
  
  <p>edit: I do know that I can use the column header as a key entry via <code>set key auto title column head</code>, however that's not quite what I'm looking for.</p>