dl></div>
    </li><li name="com.knockdata.spark.highcharts.PlotOptions#heatmap" visbl="pub" data-isabs="false" fullComment="no" group="Ungrouped">
      <a id="heatmap:com.knockdata.spark.highcharts.plotoptions.HeatMap"></a>
      <a id="heatmap:HeatMap"></a>
      <h4 class="signature">
      <span class="modifier_kind">
        <span class="modifier"></span>
        <span class="kind">def</span>
      </span>
      <span class="symbol">
        <span class="name">heatmap</span><span class="result">: <spa