ses <span class="op">=</span> <span class="va">p_res_all</span>, aggregate_fun <span class="op">=</span> <span class="va">mean</span>, na.rm <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span>
<span class="co">#&gt;   investor   DE_count   DE_total   DE_value DD_duration</span>
<span class="co">#&gt; 1    QZ621 -0.2115755 -0.2048348 -0.1806207    112.8141</span></code></pre></div>
</div>
<div class="section level3">
<h3 id="allow-short">Allow Short<a class="anchor" aria-label="an