 the
upper end. When <code>FALSE</code> and <code>.data</code> is a data frame,
names the lower and upper intervals for each column <code>x</code> <code>x.lower</code> and <code>x.upper</code>.</p></dd>


<dt id="arg--exclude">.exclude<a class="anchor" aria-label="anchor" href="#arg--exclude"></a></dt>
<dd><p>&lt;<a href="https://rdrr.io/r/base/character.html" class="external-link">character</a>&gt; Vector of names of columns to be excluded from summarization
if no column names are specified to be summarize