title: Gnuplot: add key outside plot without resizing plot
body: <p>In gnuplot, I can put the key outside the plots using <a href="http://gnuplot.sourceforge.net/demo/key.html" rel="noreferrer">this command</a>:</p>
  
  <pre><code>set key outside;
  set key right top;
  </code></pre>
  
  <p>But as <a href="http://gnuplot.sourceforge.net/demo/key.html" rel="noreferrer">this page</a> indicates, the placement of the key will automatically resize the plot area such that the size of the resulting image remains the same. Is there an easy way of keeping the plot area the same no matter where I place the key outside the plot area?</p>