y = where(is.character)</code></p></li>
<li><p>Multiple predicates: <code>.by = c(where(is.character), where(is.factor))</code></p></li>
<li><p>A combination of predicates and column names: <code>.by = c(where(is.character), b)</code></p></li>
</ul></li>
</ul></dd>


<dt id="arg--sort">.sort<a class="anchor" aria-label="anchor" href="#arg--sort"></a></dt>
<dd><p><em>experimental</em>: Default <code>TRUE</code>.
If FALSE the original order of the grouping variables will be preserved.</p></dd>


<dt id="arg--