title: How to produce Matplotlib plot with x-axis out of order?
body: <p>I want to plot some y-data with an x-axis that does not appear in numerical order:</p>
  
  <p>For example:</p>
  
  <pre><code>y = [100, 99, 93, 88, 85, 43]
  x = [0, 5, 4, 3, 2, 1]
  plot(x, y)
  </code></pre>
  
  <p>I'd like the x-axis to show up as 0, 5, 4, 3, 2, 1, in that order, evenly spaced, with the appropriate y values above.</p>
  
  <p>How can I do this?</p>