ef="../stan-users-guide/sparse-ragged.html" class="sidebar-item-text sidebar-link">
 <span class="menu-text">Sparse and Ragged Data Structures</span></a>
  </div>
</li>
          <li class="sidebar-item">
  <div class="sidebar-item-container"> 
  <a href="../stan-users-guide/clustering.html" class="sidebar-item-text sidebar-link">
 <span class="menu-text">Clustering Models</span></a>
  </div>
</li>
          <li class="sidebar-item">
  <div class="sidebar-item-container"> 
  <a href="../stan-users-guide/gau