d="cb6-10"><a href="#cb6-10" aria-hidden="true" tabindex="-1"></a><span class="kw">generated quantities</span> {</span>
<span id="cb6-11"><a href="#cb6-11" aria-hidden="true" tabindex="-1"></a>  <span class="dt">vector</span>[N] y_test_hat = normal_rng(alpha + beta * x_test, sigma);</span>
<span id="cb6-12"><a href="#cb6-12" aria-hidden="true" tabindex="-1"></a>  <span class="dt">vector</span>[N] err = y_test_sim - y_hat;</span>
<span id="cb6-13"><a href="#cb6-13" aria-hidden="true" tabindex="-1"></a>}</spa