class="math inline">\(\mathrm{B}()\)</span> is as defined in section <a href="../functions-reference/real-valued_basic_functions.html#betafun">combinatorial functions</a>.</p>
<p><em><strong>Warning:</strong></em> If <span class="math inline">\(\theta = 0\)</span> or <span class="math inline">\(\theta = 1\)</span>, then the probability is 0 and the log probability is <span class="math inline">\(-\infty\)</span>. Similarly, the distribution requires <span class="math inline">\(\mu \in (0, 1)\)</span> and str