title: Adjust plot title (main) position
body: <p>I have been unable to find a way to adjust the (vertical) distance between plot and main title in R using par. In this example:</p>
  
  <pre><code>plot(1, 1, main = "Title")
  </code></pre>
  
  <p>I can adjust the position of the axis titles using: </p>
  
  <pre><code>par(mgp = c(2.5, 1, 0))
  </code></pre>
  
  <p>But I see no way to similarly adjust the main title. I am aware that more manual control is possible using <code>title</code> or <code>mtext</code>, but I assume that there is a way setting the title distance using par as well, which would be more elegant for my purposes.</p>