countryCellRast: Return cell index values per country

In pik-piam/geodata: Landuse geodata library

Description

This function returns a list of countries and all the cell indices of a raster to it. The output can for instance be used to access the cell values of individual countries. Function is based on the function cellFromPolygon from the raster package and only considers cells whose center is within the country's polygon.

Usage

countryCellRast(x, countries="DIVA GIS", rm.length0=T,  cache=T, writecache=T)

Arguments

x	Raster file where cell index values should be calculated for
countries	Dataset that is used to sperate between counties. Currently only polygons from 'DIVA GIS' supported
rm.length0	If TRUE, all countries with no associated cells are removed from the list
cache	If TRUE, will look if the output already exists in cache and read from there
writecache	If TRUE, will also store the newly calculated output in the cache folder

Value

List of countries named by their ISO codes with raster cell indices of each country

Author(s)

Ulrich Kreidenweis

See Also

countryFunRast

Examples

## Not run: countryCellRast()

pik-piam/geodata documentation built on Nov. 5, 2019, 12:21 a.m.