This function downloads the GADM shapefile for a country (https://gadm.org/data.html). If the file is already on disk it will not perform the download. The function can check if better resolutions are available in disk.
getGADM(cod, level = 4, type = "sf", best = FALSE, destfolder = "GADM", ...)
| cod | Three letter ISO code for the country. |
|---|---|
| level | Administrative level. 0 stands for country and 1 to 4 are the successive successive nested levels. Not every country has the same depth and the nestedness is sequential. This means a country with two levels has levels 0 and 1, not 0 and 4, and that units such as states or municipalities can correspond to different levels depending on the country |
| type | The class of spatial object to be downloaded. Defaults to "sf" but can be set to "sp" |
| best | TRUE Checks if finer resolutions are available and avoids downloading data at coarser resolutions. Defaults to TRUE (will not download coarser resolution files) |
| destfolder | The destination folder |
| ... | Options for download.file() |
https://gadm.org/data.html
Andrea Sánchez-Tapia & Sara Mortara
if (FALSE) { getGADM(cod = "BRA", level = 0) getGADM(cod = "BRA", level = 1, best = TRUE) # will not download if lower levels exist getGADM(cod = "BRA", level = 3, type = "sp") }