Go from a named list to a key-value data frame or data dictionary and back

Sometimes, you'll want to have variable labels in a data.frame, sometimes you'll have imported an existing data dictionary and will need to turn it into a list before setting labelled::var_label().

Usage

list_to_dict(named_list)

dict_to_list(dict)

Arguments

named_list

a named list with one element each (names being variable names, elements being labels)

dict

a data frame with the variable names in the first and the labels in the second column. If they are named variable and label, they can also be in a different order.

Examples

data('bfi')
labels <- var_label(bfi)
head(labels, 2)
#> $A1
#> NULL
#> 
#> $A2
#> NULL
#> 
dict <- list_to_dict(labels)
#> Error in dplyr::left_join(tibble::tibble(variable = names(named_list)),     tidyr::gather(tibble::as_tibble(purrr::compact(named_list)),         "variable", "label"), by = "variable"): Join columns in `y` must be present in the data.
#> ✖ Problem with `variable`.
head(dict, 2)
#> Error: object 'dict' not found
head(dict_to_list(list_to_dict(labels)), 2)
#> Error in dplyr::left_join(tibble::tibble(variable = names(named_list)),     tidyr::gather(tibble::as_tibble(purrr::compact(named_list)),         "variable", "label"), by = "variable"): Join columns in `y` must be present in the data.
#> ✖ Problem with `variable`.