>y</code>; they can be parameters, data, or one of each, or even local variables.</p>
<p>The assignment statement in the previous paragraph generates C++ code that is similar to that generated by the following distribution statement.</p>
<div class="sourceCode" id="cb5"><pre class="sourceCode stan code-with-copy"><code class="sourceCode stan"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a>y ~ exponential(lambda);</span></code><button title="Copy to Clipboard" class="code-copy-button"