l</code> <strong><code>dirichlet_lpdf</code></strong><code>(vectors theta | vectors alpha)</code><br> The log of the Dirichlet density for simplex(es) <code>theta</code> given prior counts (plus one) <code>alpha</code></p>
<small><i>Available since 2.12, vectorized in 2.21</i></small>
<a id="index-entry-d287f450cfac7ef63c57f921d82484ef44abdfa0" class="index-entry"></a> <!-- real; dirichlet_lupdf; (vectors theta | vectors alpha); -->
<p></p>
<p><code>real</code> <strong><code>dirichlet_lupdf</code></strong><