="18" height="14" align="bottom" border="0"
 src="checkmark.png"
 alt="$\checkmark$"></span></td>
 <td align="center"><span class="math"><img
 width="18" height="14" align="bottom" border="0"
 src="checkmark.png"
 alt="$\checkmark$"></span></td>
 <td align="left">count data, IN</td>
 <td>Poisson regression</td>
</tr>

</table>

<p>All of the objects described above are written in a modular way, so
you can add functionality if you feel constrained despite the
considerable flexibility provided. Details about 