| 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 |