y_1,\ldots,y_k} =
\frac{N!}{\prod_{k=1}^K y_k!}. \]</span></p>
</div>
<div id="sampling-statement-18" class="section level3">
<h3><span class="header-section-number">14.1.2</span> Sampling Statement</h3>
<p><code>y ~</code> <strong><code>multinomial</code></strong><code>(theta)</code></p>
<p>Increment target log probability density with <code>multinomial_lpmf( y | theta)</code>
dropping constant additive terms.
<!-- real; multinomial ~; -->
</p>
</div>
<div id="stan-functions-17" class="section level3">
<h3