 class="st">"31"</span>, <span class="st">"23"</span>, <span class="st">"19"</span>, <span class="st">"24"</span><span class="op">)</span></span>
<span><span class="op">)</span></span>
<span></span>
<span><span class="va">survey</span></span>
<span><span class="co">#&gt;            X1                         X2           X3    X4    X5   X6</span></span>
<span><span class="co">#&gt; 1 Participant How did you hear about us?         &lt;NA&gt;  &lt;NA&gt;  &lt;NA&gt;  Age</span></span>
<span><span class="co">