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DHS Spatial Boundaries

Source: R/shapes.R
download_boundaries.Rd

Download Spatial Boundaries

Usage

download_boundaries(
  surveyNum = NULL,
  surveyId = NULL,
  countryId = NULL,
  method = "sf",
  quiet_download = FALSE,
  quiet_parse = TRUE,
  server_sleep = 5,
  client = NULL
)

Arguments

surveyNum

Numeric for the survey number to be downloaded. Values for surveyNum can be found in the datasets or surveys endpoints in the DHS API that can be accessed using dhs_datasets and dhs_surveys. Default is NULL, which will cause the SurveyId to be used to find the survey.

surveyId

Numeric for the survey ID to be downloaded. Values for surveyId can be found in the datasets or surveys endpoints in the DHS API that can be accessed using dhs_datasets and dhs_surveys. Default is NULL, which will cause the SurveyNum to be used to find the survey.

countryId

2-letter DHS country code for the country of the survey being downloaded. Default = NULL, which will cause the countrycode to be looked up from the API.

method

Character for how the downloaded shape file is read in. Default = "sf", which uses sf::st_read. Currently, this is the only option available(`rgdal` used to be available) but for development reasons this will be left as a parameter option for possible future alternatives to read in spatial files. To just return the file paths for the files use method = "zip".

quiet_download

Whether to download file quietly. Passed to [`download_file()`]. Default is `FALSE`.

quiet_parse

Whether to read boundaries dataset quietly. Applies to `method = "sf"`. Default is `TRUE`.

server_sleep

Numeric for length of sleep prior to downloading file from their survey. Default 5 seconds.

client

If the request should be cached, then provide a client object created by client_dhs. Default = `NULL`, which will search for a client to use

Value

Returns either the spatial file as a `sf` (see [sf::sf]) object, or a vector of the file paths of where the boundary was downloaded to.

Details

Downloads the spatial boundaries from the DHS spatial repository, which can be found at https://spatialdata.dhsprogram.com/home/.

Examples

if (FALSE) {
 # using the surveyNum
 res <- download_boundaries(surveyNum = 471, countryId = "AF")

 # using the surveyId and no countryID
 res <- download_boundaries(surveyId = "AF2010OTH")

 }