rks. Altought the user can use <tt>BiMat</tt> null models for designing his own statistical tests, <tt>BiMat</tt> comes already with an <tt>StatisticalTest</tt> that helps the user to perform such tests. <tt>BiMat</tt> comes with statistical test for both modularity and nestedness. These tests can be executed directly on an instance of the <tt>Bipartite</tt> class (where the property <tt>statistics</tt> is an instance of the <tt>StatisticalTest</tt> class, or directly in the adjacency matrix.</p><!--/introd