group_cols function

Select grouping variables

This selection helpers matches grouping variables. It can be used in select() or vars() selections.

group_cols(vars = NULL, data = NULL)

Arguments

• vars: Deprecated; please use data instead.
• data: For advanced use only. The default NULL automatically finds the "current" data frames.

Examples

gdf <- iris %>% group_by(Species)
gdf %>% select(group_cols())

# Remove the grouping variables from mutate selections:
gdf %>% mutate_at(vars(-group_cols()), `/`, 100)
# -> No longer necessary with across()
gdf %>% mutate(across(everything(), ~ . / 100))

See Also

groups() and group_vars() for retrieving the grouping variables outside selection contexts.