decorations_groups.data.frame {yamlet}

Recover Groups Decorations for Data Frame

Description

Recovers groups decorations for class 'data.frame'. Seeks a sequentially-valued integer attribute with name 'groups' for each column, sorts these, and returns a character vector like group_vars(x).

Usage

## S3 method for class 'data.frame'
decorations_groups(x, ...)

Arguments

x

data.frame

...

ignored

Value

character: names of groups columns

See Also

Other decorate: as_decorated.default(), as_decorated(), decorate.character(), decorate.data.frame(), decorate.list(), decorate_groups.data.frame(), decorate_groups(), decorate(), decorations.data.frame(), decorations_groups(), decorations(), group_by_decorations.data.frame(), group_by_decorations(), redecorate()

Examples

library(magrittr)
library(dplyr)
Theoph %<>% group_by(Subject, Time)
Theoph %>% group_vars
Theoph %>% decorations_groups # nothing!
Theoph %<>% decorate_groups
Theoph %>% decorations_groups # something!
Theoph %<>% ungroup
Theoph %>% group_vars # gone!
Theoph %<>% group_by(across(all_of(decorations_groups(.))))
Theoph %>% group_vars # recovered!
Theoph %<>% group_by_decorations
Theoph %>% group_vars # same
rm(Theoph)