s a planar property.
</p>
</dd></dl>

<dl class="first-deftypecv first-deftypeivar-alias-first-deftypecv">
<dt class="deftypecv deftypeivar-alias-deftypecv" id="index-tfMissing-of-categorical"><span class="category-def">Instance Variable of <code class="code">categorical</code>: </span><span><code class="def-type"><code class="code">logical</code></code> <strong class="def-name">tfMissing</strong><a class="copiable-link" href="#index-tfMissing-of-categorical"> &para;</a></span></dt>
<dd>
<p>A logical mask i