ader">
                <td colspan="2">Clustering</td>
            </tr>
            <tr class="collapsible toggle" onclick="toggleTable('methodTable','cluster', this);">
                <td colspan="2"><span parent="cluster" class="right-caret" id="method_cluster"></span> cluster(
                    <code>Object options</code>)
                </td>
            </tr>
            <tr class="hidden" parent="cluster">
                <td class="midMethods">Returns: none</td>
                <td>The options o