  <td><p>a string which specify plot type:</p><ul>
<li><p><code>'blocks'</code>: plot a block matrix with summarizing connections between clusters</p></li>
<li><p><code>'nodelink'</code>: plot a nodelink diagram of the bipartite graph summarizing connections between clusters</p></li>
<li><p><code>'front'</code>: plot the extracted front ICL, log(alpha)</p></li>
<li><p><code>'path'</code>: plot the evolution of ICL with respect to K</p></li>
<li><p><code>'tree'</code>: plot the dendrogram</p></li>
</ul></td>