x</span><span class="p">,</span> <span class="n">tidSetI</span><span class="p">):</span>
<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        Saves the patterns that satisfy the periodic frequent property.</span>
<span class="sd">        :param prefix: the prefix of a pattern</span>
<span class="sd">        :type prefix: list</span>
<span class="sd">        :param suffix: the suffix of a patterns</span>
<span class="sd">        :type suffix: list</span>
<span cl