_names.html" class="external-link">?vctrs::vec_as_names</a></code> for options/details</p></dd>


<dt id="arg--by">.by<a class="anchor" aria-label="anchor" href="#arg--by"></a></dt>
<dd><p>Columns to group by</p></dd>

</dl></div>

    <div id="ref-examples">
    <h2>Examples</h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span><span class="va">df</span> <span class="op">&lt;-</span> <span class="fu"><a href="tidytable.html">tidytable</a></span><span class="op">(</span>x