="even">
<td align="left">tracemp</td>
<td align="left">Fast computation of trace of matrix product</td>
</tr>
<tr class="odd">
<td align="left">write.xml</td>
<td align="left">Write a data frame in XML format</td>
</tr>
</tbody></table>
</div>
<div id="graphics" class="section level2">
<h2 class="hasAnchor">
<a href="#graphics" class="anchor"></a>Graphics</h2>
<table class="table"><tbody>
<tr class="odd">
<td align="left">col.alpha</td>
<td align="left">Add and set alpha channel for RGB color</td>
</tr>
<t