Parameters:</span></dt><dd><code>a</code> - the listener to notify when attribute bars are clicked on</dd></dl>
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<h4>setCindex</h4>
<pre>public&nbsp;void&nbsp;setCindex(int&nbsp;c,
             double&nbsp;h,
             double&nbsp;l)</pre>
<div class="block">Set the index of the attribute by which to colour the data. Updates
 the number of entries in the colour list if there are more values
