Geocoding to NUTS Region Codes • nutscoder

{nutscoder} provides the function nuts_geocode, which attempts to find NUTS region codes for location names by using Nominatim to search OpenStreetMap (OSM) data.

Installation

You can install the development version of {nutscoder} like so:

remotes::install_github("RegioHub/nutscoder")

Usage

library(nutscoder)
nuts_geocode(c("Hamburgo", "هامبورغ", "HH", "Berlin", "🐻Bärlin", "ベルリン",
               "North Rhine-Westphalia", "nrw"))
#> # A tibble: 8 × 5
#>   location               name                nuts_1 nuts_2 nuts_3
#>   <chr>                  <chr>               <chr>  <chr>  <chr> 
#> 1 Hamburgo               Hamburg             DE6    DE60   DE600 
#> 2 هامبورغ                Hamburg             DE6    DE60   DE600 
#> 3 HH                     Hamburg             DE6    DE60   DE600 
#> 4 Berlin                 Berlin              DE3    DE30   DE300 
#> 5 🐻Bärlin               Berlin              DE3    DE30   DE300 
#> 6 ベルリン               Berlin              DE3    DE30   DE300 
#> 7 North Rhine-Westphalia Nordrhein-Westfalen DEA    <NA>   <NA>  
#> 8 nrw                    Nordrhein-Westfalen DEA    <NA>   <NA>

The sf geometry of the geocoded NUTS regions can be returned:

nuts_geocode(c("berlin", "brandenburg"), return_geometry = TRUE) |> 
  sf::st_geometry() |> 
  plot()

The argument nominatim_api can be used to specify the API URL of the Nominatim instance used to search for OSM data. By default, nuts_geocode() uses the public Nominatim instance (nominatim_api = "https://nominatim.openstreetmap.org"), which has an absolute maximum of 1 request per second and is not suitable for intensive use. You can install your own instance of Nominatim to avoid the limitations of the public instance.

Citation

To cite package ‘nutscoder’ in publications use:

Nguyen HL (2023). {nutscoder}: Geocoding to NUTS Region Codes. https://doi.org/10.5281/zenodo.7679254, https://github.com/RegioHub/nutscoder

A BibTeX entry for LaTeX users is

@Manual{,
  title = {{nutscoder}: Geocoding to NUTS Region Codes},
  doi = {10.5281/zenodo.7679254},
  author = {H. Long Nguyen},
  year = {2023},
  version = {0.1.1},
  url = {https://github.com/RegioHub/nutscoder},
}

Disclaimers

The use of the server running at https://nominatim.openstreetmap.org is governed by the Nominatim Usage Policy.

Geodata from OpenStreetMap are licensed under the terms of the Open Database License (ODbL) 1.0.

Use of any OSMF provided service is further governed by the OSMF Terms of Use.