Extract raster summaries into cells — cell

Cell polygons are generated only for the supplied cells. Extraction uses exact raster-pixel coverage through exactextractr::exact_extract(). With fun = NULL, continuous layers use an area-weighted mean and categorical layers use a coverage-weighted mode. This makes longitude/latitude rasters safe by default, because their pixels do not have equal physical area.

Usage

cell_extract(cell, raster, fun = NULL, weights = "area", ..., progress = NULL)

Arguments

cell: A globalhex_cell vector.
raster: A terra::SpatRaster.
fun: A named exactextractr summary, a vector of summary names, or a custom summary function. NULL chooses a type-aware default.
weights: Weights for continuous defaults and explicit weighted summaries. Use "area" (the default), NULL for coverage fractions alone, or a compatible terra::SpatRaster.
...: Additional arguments passed to exactextractr::exact_extract().
progress: Whether exactextractr displays progress. NULL follows interactive().

Value

A hex_data() object with one row per input cell.