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Augments data with an additional column is_former_country indicating whether or not the column country_code holds an ISO 3166-3 alpha-4 code referring to a historical country which ceased to exist. is_former_country being FALSE means country_code holds an ISO 3166-1 alpha-2 code instead.

Usage

add_former_country_flag(data)

Arguments

data

RDB referendum data as returned by rfrnds(). A data frame that at minimum contains the column country_code (with ISO 3166-1 alpha-2 or ISO 3166-3 alpha-4 codes).

Value

A tibble.

See also

Examples

rdb::rfrnds() |>
  rdb:::add_former_country_flag() |>
  dplyr::select(id,
                starts_with("country_"),
                is_former_country)
#> # A tibble: 17,766 × 4
#>    id                       country_code country_name is_former_country
#>    <chr>                    <fct>        <fct>        <lgl>            
#>  1 65096e84481d20233932cc70 PL           Poland       FALSE            
#>  2 65096dc1481d20233932cc6e PL           Poland       FALSE            
#>  3 65096535481d20233932cc66 PL           Poland       FALSE            
#>  4 6509625d481d20233932cc63 PL           Poland       FALSE            
#>  5 650034e4481d20233932cc39 AU           Australia    FALSE            
#>  6 64e46f7a481d20233932cc0b EC           Ecuador      FALSE            
#>  7 64e46c8f481d20233932cc09 FM           Micronesia   FALSE            
#>  8 64c8b3ca0b8bae0c78c7ec8a FM           Micronesia   FALSE            
#>  9 64c8b19c0b8bae0c78c7ec86 FM           Micronesia   FALSE            
#> 10 64c8a28d0b8bae0c78c7ec82 FM           Micronesia   FALSE            
#> # ℹ 17,756 more rows