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A data.frame with coordinates of country and province centroids and country capitals as reference for the clean_coordinates, cc_cen and cc_cap functions. Coordinates are based on the Central Intelligence Agency World Factbook https://www.cia.gov/the-world-factbook/, https://thematicmapping.org/downloads/world_borders.php and geolocate https://geo-locate.org.

Format

A data frame with 5,305 observations on 13 variables. #'

iso3

ISO-3 code for each country, in case of provinces also referring to the country.

iso2

ISO-2 code for each country, in case of provinces also referring to the country.

adm1_code

adm code for countries and provinces.

name

a factor; name of the country or province.

type

identifying if the entry refers to a country or province level.

centroid.lon

Longitude of the country centroid.

centroid.lat

Latitude of the country centroid.

capital

Name of the country capital, empty for provinces.

capital.lon

Longitude of the country capital.

capital.lat

Latitude of the country capital.

area_sqkm

The area of the country or province.

uncertaintyRadiusMeters

The uncertainty of the country centroid.

source

The data source. Currently only available for https://geo-locate.org

Source

CENTRAL INTELLIGENCE AGENCY (2014) The World Factbook, Washington, DC.

https://www.cia.gov/the-world-factbook/ https://thematicmapping.org/downloads/world_borders.php https://geo-locate.org

Examples


data(countryref)
head(countryref)
#>   iso3 iso2 adm1_code          name    type centroid.lon centroid.lat capital
#> 1  AFG   AF       AFG   Afghanistan country       65.000       33.000   Kabul
#> 2  AFG   AF       AFG   Afghanistan country       66.000       33.000   Kabul
#> 3  AFG   AF       AFG   Afghanistan country       65.216       33.677   Kabul
#> 4  ALA   AX       ALA Aland Islands country       19.952       60.198    <NA>
#> 5  ALA   AX       ALA Aland Islands country       20.000       60.250    <NA>
#> 6  ALB   AL       ALB       Albania country       20.000       41.000  Tirana
#>   capital.lon capital.lat area_sqkm uncertaintyRadiusMeters    source
#> 1       69.18       34.52 642181.62                     301 geolocate
#> 2       69.18       34.52 642181.62                     301 geolocate
#> 3       69.18       34.52 642181.62                    <NA>      <NA>
#> 4          NA          NA        NA                    <NA>      <NA>
#> 5          NA          NA        NA                    <NA>      <NA>
#> 6       19.82       41.32  28335.85                     301 geolocate