title: How to draw a line or add a text outside of the plot area in R?
body: <p>Thank you for reading. I find that I am unable to draw lines/points or add text outside of the plot area. If I draw a line from inside the plot (within the axis) area to the area of the xlab main title areas only the part within the plot shows. In a multiple plot graph (mfrow) the line/point will only be drawn inside the last active plot.</p>
  
  <pre><code>plot(0);
  l=locator(2,type='n');
  lines(l, type='l'); 
  </code></pre>
  
  <p>Any solution to this problem? Thanks!</p>