title: D3 - how do I remove comma separator from my xAxis?
body: <p>I have a data set that uses straightforward dates for the x-axis. However, I keep getting a comma separator in the thousands place (which would lend some confusion to my graph's intent.) I can't seem to figure out how to word my .format line properly. </p>
  
  <p>Original code:</p>
  
  <pre><code>        var x = d3.scale.linear()
          .range([0, width]);
  </code></pre>
  
  <p>My .formatted scale:</p>
  
  <pre><code>        var x = d3.scale.linear()
          .range([0, width])
          .format(04d);
  </code></pre>
  
  <p>The second option -- you guessed it -- makes my whole graph disappear. Any takers?</p>