title: highcharts hide xAxis
body: <p>I have a bar chart displaying and I have full control over colors, alignment, data label formatting, etc, but when the chart renders there's a label below the x Axis showing "Y-values" in blue.</p>
  
  <p>The generated mark-up is like so...</p>
  
  <pre><code>&lt;g class="highcharts-axis" zIndex="2"&gt;
    &lt;text x="145" y="181" 
        style="font-family:&amp;quot;Lucida Grande&amp;quot;, &amp;quot;Lucida Sans Unicode&amp;quot;, Verdana, Arial, Helvetica, sans-serif;font-size:12px;color:#6D869F;font-weight:bold;fill:#6D869F;" 
        zIndex="7" 
        text-anchor="middle" 
        visibility="visible"&gt;
      &lt;tspan x="145"&gt;Y-values&lt;/tspan&gt;
    &lt;/text&gt;
  &lt;/g&gt;
  </code></pre>
  
  <p>which gives no clue as to which config value I need to overwrite.</p>
  
  <p>I've spent far too long trying to figure our whether this is an attribute of the chart object or of the xAxis object or of a data series, with no luck.</p>
  
  <p>In desperation I searched the source and found "Y-values" appears exactly once in highcharts.js, and seems to be the default for defaultYAxisOptions.title.text</p>
  
  <pre><code>ob.prototype={ defaultYAxisOptions:{ title:{ text:"Y-values" } } };
  </code></pre>
  
  <p>If I change the source to read "hello world!" then that comes out instead of Y-values, but changing the source shouldn't be necessary!</p>
  
  <p>If I change my config to read... </p>
  
  <pre><code>               Highcharts.setOptions({
                      // lots of other settings
                      defaultYAxisOptions: {
                          title: {
                              text: "something else"
                          }
                      },
                      // some more settings
                  });
  </code></pre>
  
  <p>I still get "Y-values".</p>
  
  <p>Where is the correct place to assign my own value to this setting, or hide it?</p>