href="#cb21-5"></a>           <span class="at">semantic_coherence =</span> <span class="fu">map</span>(topic_model, semanticCoherence, words_sparse),</span>
<span id="cb21-6"><a href="#cb21-6"></a>           <span class="at">eval_heldout       =</span> <span class="fu">map</span>(topic_model, eval.heldout, heldout<span class="sc">$</span>missing),</span>
<span id="cb21-7"><a href="#cb21-7"></a>           <span class="at">residual           =</span> <span class="fu">map</span>(topic_model, checkResiduals, wo