at
defines a function with the same name and signature in a namespace
that is formed by concatenating the <code>class_name</code> argument to
stanc documented above to the string <code>_namespace</code></p>
<p>As an example, consider the following variant of the Bernoulli example</p>
<pre><code>functions {
       real make_odds(real theta);
}
data {
       int&lt;lower=0&gt; N;
       int&lt;lower=0,upper=1&gt; y[N];
     }
     parameters {
       real&lt;lower=0,upper=1&gt; theta;
}
model {
       theta ~