                          <span class="keywordtype">size_t</span> j, <span class="keywordtype">size_t</span> k) <span class="keyword">const</span> = 0;
<a name="l00292"></a>00292 <span class="preprocessor">#endif</span>
<a name="l00293"></a>00293 <span class="preprocessor"></span>
<a name="l00294"></a>00294   <span class="comment">// normalizing factor(log-prob)</span>
<a name="l00295"></a>00295   <span class="keyword">virtual</span> <span class="keywordtype">double</span> Z() <span class="keyword">const</s