e can be placed into the formula, but it is provided
for similarity to other functions from the <span class="pkg">mosaic</span> package.</p></dd>


<dt>long_names</dt>
<dd><p>A logical indicating whether the default names should include the name
of the variable being summarized as well as the summarizing function name in the default
case when names are not derived from the names of the returned object or
an argument name.</p></dd>


<dt>nice_names</dt>
<dd><p>A logical indicating whether <code><a href="http