>
    <p>Create a new column indicating the membership of another column in a given set.</p>
    </div>

    <div id="ref-usage">
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">set_indicator</span><span class="op">(</span></span>
<span>  <span class="va">source</span>,</span>
<span>  <span class="va">rescol</span>,</span>
<span>  <span class="va">testcol</span>,</span>
<span>  <span class="va">testvalues</span>,</span>
<span>  <span class="va">...</span>,</span>
<span>  t