passport smooths the process of working with country names and codes via powerful parsing, standardization, and conversion utilities arranged in a simple, consistent API. Country name formats include multiple sources including the Unicode CLDR common-sense standardizations in hundreds of languages.

Installation

Install from CRAN with

or the development version from GitHub with


Travel smoothly between country name and code formats

Working with country data can be frustrating. Even with well-curated data like gapminder, there are some oddities:

passport offers a framework for working with country names and codes without manually editing data or scraping codes from Wikipedia.

I. Standardize

If data has non-standardized names, standardize them to an ISO 3166-1 code or other standardized code or name with parse_country:

If country names are particularly irregular, in unsupported languages, or are even just unique location names, parse_country can use Google Maps or Data Science Toolkit geocoding APIs to parse instead of regex:

parse_country(c("somewhere in Japan", "日本", "Japon", "जापान"), how = "google")
#> [1] "JP" "JP" "JP" "JP"

parse_country(c("1600 Pennsylvania Ave, DC", "Eiffel Tower"), how = "google")
#> [1] "US" "FR"

II. Convert

If data comes with countries already coded, convert them with as_country_code():

or to convert to country names, use as_country_name():

or translate to another language:

Language formats largely follow IETF language tag BCP 47 format. For all available formats, run DT::datatable(codes) for an interactive widget of format names and further information.

III. Format

A particularly common hangup with country data is presentation. While “Yemen, Rep.” may be fine for exploratory work, to create a plot to share, such names need to be changed to something more palatable either by editing the data or manually overriding the labels directly on the plot.

If the existing format is already standardized, passport offers another option: use a formatter function created with country_format, just like for thousands separators or currency formatting. Reorder simply with order_countries:

By default country_format will use Unicode CLDR (see below) English names, which are intelligible and suitable for most purposes. If desired, other languages or formats can be specified just like in as_country_name.


Data

The data underlying passport comes from a number of sources, including

Licensing

passport is licenced as open-source software under GPL-3. Unicode CLDR data is licensed according to its own license, a copy of which is included. countrycode regex are used as a modification under GPL-3; see the included aggregation script for modifiying code and date.