s="hljs-literal">NA</span> <span class="hljs-keyword">...</span>
 $ topic_xyz         : num  <span class="hljs-literal">NA</span> <span class="hljs-literal">NA</span> <span class="hljs-literal">NA</span> <span class="hljs-number">0.245</span> <span class="hljs-literal">NA</span> <span class="hljs-keyword">...</span>
</code></pre>
<h4><a class="anchor" aria-hidden="true" name="interpret-topics"></a><a href="#interpret-topics" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="