title: How to disable the labels of x-axis amcharts
body: <p>I am trying not to show the labels of x-axis, which in this case are:
  "7.5, 8.0, 8.5, 9.0" and so on.</p>
  
  <p>This is what I have tried so far:</p>
  
  <pre><code>&lt;div id="chartdiv"&gt;&lt;/div&gt;
  
  var chart = AmCharts.makeChart("chartdiv", {
  "theme": "light",
  "type": "serial",
  "dataProvider": [{
      "name": "3s",
      "startTime": 8,
      "endTime": 11,
      "color": "#FF0F00"
  }],
  "valueAxes": [{
      "axisAlpha": 0,
      "gridAlpha": 0.1
  }],
  "startDuration": 1,
  "graphs": [{
      "balloonText": "&lt;b&gt;[[category]]&lt;/b&gt;&lt;br&gt;starts at [[startTime]]&lt;br&gt;ends at [[endTime]]",
      "colorField": "color",
      "fillAlphas": 0.8,
      "lineAlpha": 0,
      "openField": "startTime",
      "type": "column",
      "valueField": "endTime"
  }],
  "rotate": true,
  "columnWidth": 1,
  "categoryField": "name",  
  });
  </code></pre>
  
  <p><a href="http://jsfiddle.net/s3qr7hay/" rel="noreferrer">JSFiddle Demo</a></p>