ss="xref" href="string.html">string</a>.
</p></dd>
<dt>NaS</dt>
<dd><p>“Not-a-String&quot;.
</p>
<p>See <a class="xref" href="NaS.html">NaS</a>.
</p></dd>
<dt>contains</dt>
<dd><p>Test if strings contain a pattern.
</p>
<p>See <a class="xref" href="contains.html">contains</a>.
</p></dd>
<dt>dispstrs</dt>
<dd><p>Display strings for array.
</p>
<p>See <a class="xref" href="dispstrs.html">dispstrs</a>.
</p></dd>
<dt>categorical</dt>
<dd><p>Categorical variable array.
</p>
<p>See <a class="xref" href="categor