title: How to plot vertical line with string in MATLAB
body: <p>I have two arrays, let it be called theArray1 theArray2 of N in this format:</p>
  
  <pre><code>5 13 20 ..
  bloladsa adsad rwerds ..
  </code></pre>
  
  <p>and i want to add to my plot a vertical line at the {5,13,20,..} X values and that the string</p>
  
  <p>in the same X value will be written let say on the lower part of the line (dont really care about the location)</p>
  
  <p>I dont even have an idea how to do this so no code to show</p>
  
  <p>edit
  the vertical lines i draw with :</p>
  
  <pre><code>hx = graph2d.constantline(theArray1, 'LineStyle',':', 'Color',[.7 .7 .7]);
  changedependvar(hx,'x');
  </code></pre>
  
  <p>now i just need to add the text at those places</p>