ss="anchor"></a>Grouping</h3>
<p>When you want to <code>thicken</code> and <code>pad</code> within groups there are two options. Either you group the data with <code><a href="https://dplyr.tidyverse.org/reference/group_by.html">dplyr::group_by()</a></code> before applying them, or you specify the <code>group</code> argument in <code>pad</code>. Note that <code>thicken</code> does not have a grouping argument, because thickening with or without grouping would give the same result. However, <code>thicken</cod