rg/reference/mutate.html" class="external-link">mutate()</a></code> step before the <code><a href="https://dplyr.tidyverse.org/reference/group_by.html" class="external-link">group_by()</a></code>.
Computations are not allowed in <code><a href="https://dplyr.tidyverse.org/reference/nest_by.html" class="external-link">nest_by()</a></code>.
In <code><a href="https://dplyr.tidyverse.org/reference/group_by.html" class="external-link">ungroup()</a></code>, variables to remove from the grouping.</p></dd>


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