Convert standardized country names to country codes

as_country_code converts a vector of standardized country names or codes to country codes

as_country_code(x, from, to = "iso2c", factor = is.factor(x))

Arguments

x	A character, factor, or numeric vector of country names or codes
from	Format from which to convert. See Details for more options.
to	Code format to which to convert. Defaults to "iso2c"; see codes for more options.
factor	If TRUE, returns factor instead of character vector.

Value

A vector of country codes. Warns if new NA values are added.

Details

as_country_code takes a character, factor, or numeric vector of country names or codes to translate into the specified code format. The default for to is "iso2c", the ISO 3166-1 Alpha-2 character codes, but many alternatives are available.

Several non-unique codes are available as well, including "continent", "is_independent", ISO 4217 currency codes, etc. Backwards conversion will not work for such cases.

See codes for all options, or run DT::datatable(codes) for a searchable widget.

See also

For converting to country names, use as_country_name(), which offers control of short and variant forms. For parsing non-standardized country names to codes, use parse_country().

Examples

# Codifies standardized names
as_country_code(c("US", "Taiwan", "Myanmar", "Kosovo", "South Korea"), from = "en")
#> [1] "US" "TW" "MM" "XK" "KR"

# Translates codes; if passed a factor, returns a releveled one
as_country_code(factor(c("SAH", "PCN", "OMA", "JPN")),
                from = "fifa", to = "iso4217_3c")
#> [1] MAD NZD OMR JPY
#> Levels: JPY OMR NZD MAD