rn the equivalent of their <code>_lpdf</code> and <code>_lpmf</code> forms):</p>
<div class="sourceCode" id="cb13"><pre class="sourceCode stan code-with-copy"><code class="sourceCode stan"><span id="cb13-1"><a href="#cb13-1" aria-hidden="true" tabindex="-1"></a><span class="kw">target +=</span> foo_lpdf(z | phi);</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
<p>If there are no <code>_lupdf</code> or <code>_lupmf</code> functions used in the d