/span><span class="op">)</span></span></code></pre></div>
<p>Note that currently <code>keyby</code> is not used in
<em>tidyfst</em>. This featuer might be included in the future for
better performance in order-independent tasks. Moreover,
<code>count_dt</code> is sorted automatically by the counted number,
this could be controlled by the parameter “sort”.</p>
<div class="sourceCode" id="cb24"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="co"># data.table</span></span>
