colgrp                  Make a Single Column Grouping
group_by2               Group a Tibble With Inapplicable Groups
infer_colgrps           Set Column Grouping for a Structured Data Frame
pivot_grps              Pivot with Inapplicable Groups
sep_colgrp              Separate Columns By a Character
ungroup.igrouped_df     Ungroup a Tibble With Inapplicable Groups
