title: Plotting with a Specific Marker
body: <p>I would like to plot a matrix of zeros and ones into a figure such that for every 1 i have a marker shaped like a vertical bar is plotted " | ". Such that when a series of 1s are on the same x axis, the look like a long straight line.</p>
  
  <p>This example illustrates my intentions:</p>
  
  <p>Given the following matrix:</p>
  
  <pre><code>0 0 1 1 0 1 0
  0 1 0 1 1 1 0
  0 1 0 1 1 1 0
  1 0 0 1 1 1 0
  </code></pre>
  
  <p>I get: </p>
  
  <p><img src="https://i.imgur.com/pVsd6.jpg" alt="Bar Figure"></p>