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Get Mean or Median Elevation from Downloaded DEM Data Using Country Boundaries

Source: R/get_elevation.R
get_elevation.Rd

This function calculates the mean or median elevation for a given set of ISO3 country codes by loading the downloaded DEM files and extracting raster values within the country's boundary.

Usage

get_elevation(PATHS, iso_codes, method = "median")

Arguments

PATHS

A list containing paths where DEM data is stored. Typically generated by the get_paths() function and should include:

  • DATA_DEM: Path to the directory where DEM rasters are saved (GeoTIFF format).

  • DATA_SHAPEFILES: Path to the directory where shapefiles are saved.

iso_codes

A character vector of ISO3 country codes for which the elevation data will be calculated.

method

A character string specifying the method to use for calculating elevation statistics. Can be "mean" or "median" (default is "median").

Value

A data frame with ISO3 codes, country names, and the calculated mean or median elevation for each country.

Examples

if (FALSE) { # \dontrun{
# Define the ISO3 country codes
iso_codes <- c("ZAF", "KEN", "NGA")

# Get paths for data storage
PATHS <- get_paths()

# Calculate mean elevation for the countries
mean_elevations <- get_elevation(iso_codes, PATHS, method = "mean")
print(mean_elevations)
} # }