 strings to `vocab` id</p>
    </div>

    <div id="ref-usage">
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">MultiCategorize</span><span class="op">(</span>vocab <span class="op">=</span> <span class="cn">NULL</span>, add_na <span class="op">=</span> <span class="cn">FALSE</span><span class="op">)</span></span></code></pre></div>
    </div>

    <div id="arguments">
    <h2>Arguments</h2>
    <dl><dt>vocab</dt>
<dd><p>vocabulary</p></dd>


<dt>add_na</dt>
<dd><p>add NA<