y global
variable, grouping variable, {.new_cols}, {.dropped_cols}, {.cols} or {.strata}.
Defaults to nothing.</p></dd>


<dt id="arg--tag">.tag<a class="anchor" aria-label="anchor" href="#arg--tag"></a></dt>
<dd><p>if you want the summary data from this step in the future then
give it a name with .tag.</p></dd>

</dl></div>
    <div class="section level2">
    <h2 id="value">Value<a class="anchor" aria-label="anchor" href="#value"></a></h2>
    <p>the <code>.data</code> dataframe after being modified by th