Downscale a Spatial Raster

This function is an alternative to raster::resample() and downscales a raster to coarser raster in a more efficient way (for large rasters).

downscale(from, to, FUN = "mean", progress = TRUE)

Arguments

from	A RasterLayer, RasterStack or RasterBrick to downscale
to	A RasterLayer with characteristics that from should be downscale to
FUN	The function to aggregate values (DEFAULT: "mean")
progress	If TRUE, a progress bar is displayed

Value

A RasterLayer, RasterStack or RasterBrick.

Examples

library(raster)
#> Loading required package: sp

from  <- raster(system.file("external/test.grd", package = "raster"))
to    <- aggregate(from, fac = 2)

final <- downscale(from, to, FUN = "mean", progress = FALSE)

par(mfrow = c(1, 2))
plot(from)
plot(final)