rg-x">x<a class="anchor" aria-label="anchor" href="#arg-x"></a></dt>
<dd><p>an <a href="rsk-class.html">rsk</a> object.</p></dd>


<dt id="arg-subset">subset<a class="anchor" aria-label="anchor" href="#arg-subset"></a></dt>
<dd><p>a condition to be applied to the <code>data</code> portion of <code>x</code>.
See “Details”.</p></dd>


<dt id="arg--">...<a class="anchor" aria-label="anchor" href="#arg--"></a></dt>
<dd><p>ignored.</p></dd>

</dl></div>
    <div class="section level2">
    <h2 id="value">Val