</div>
<div id="simplex-distributions" class="section level1">
<h1 number="22"><span class="header-section-number">22</span> Simplex Distributions</h1>
<p>The simplex probabilities have support on the unit <span class="math inline">\(K\)</span>-simplex for a
specified <span class="math inline">\(K\)</span>. A <span class="math inline">\(K\)</span>-dimensional vector <span class="math inline">\(\theta\)</span> is a unit
<span class="math inline">\(K\)</span>-simplex if <span class="math inline">\(\theta_k \g