tr>
    <tr>
      <th>animation.duration</th>
      <td><p>Number of milliseconds to animate zooming in and 
out. For large <code>x</code> it may help performance to set this value to 
<code>0</code>.</p></td>
    </tr>
    <tr>
      <th>reverse.columns</th>
      <td><p>logical indicating if the column order should be 
reversed for plotting. Default (when missing) - is FALSE, unless symmetrical 
is TRUE... useful for correlation matrices.</p></td>
    </tr>
    </table>
    
    <h2 class="hasAnchor" id=