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  <li><a href="#evaluating-posterior-predictive.section" id="toc-evaluating-posterior-predictive.section" class="nav-link" data-scroll-target="#evaluating-posterior-predictive.section">Evaluating posterior predictive densities</a>
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  <li><a href="#stan-program" id="toc-stan-program" class="nav-link" data-scroll-target="#stan-program">Stan program</a></li>
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