(theta | alpha)</code>.</p>
<small><i>Available since 2.0</i></small>
<a id="index-entry-2b1866f861130d47e076c909b2da014d36b08615" class="index-entry"></a> <!-- real; dirichlet ~; -->
<p></p>
</section>
<section id="stan-functions" class="level3">
<h3 class="anchored" data-anchor-id="stan-functions">Stan functions</h3>
<p>The Dirichlet probability functions are overloaded to allow the simplex <span class="math inline">\(\theta\)</span> and prior counts (plus one) <span class="math inline">\(\alpha\)</span> 