mosaic.Rd
Combine adjacent and (partly) overlapping SpatRasters to form a single new SpatRaster. Values in overlapping cells are averaged (by default) or can be computed with another function.
The SpatRasters must have the same origin and spatial resolution.
This method is similar to the simpler, but much faster, merge
method.
# S4 method for SpatRaster,SpatRaster
mosaic(x, y, ..., fun="mean", filename="", overwrite=FALSE, wopt=list())
# S4 method for SpatRasterCollection,missing
mosaic(x, fun="mean", filename="", ...)
SpatRaster
object of same class as x
additional SpatRasters
character. One of "sum", "mean", "median", "min", "max"
character. Output filename
logical. If TRUE
, filename
is overwritten
list with named options for writing files as in writeRaster
SpatRaster
x <- rast(xmin=-110, xmax=-60, ymin=40, ymax=70, res=1, vals=1)
y <- rast(xmin=-95, xmax=-45, ymax=60, ymin=30, res=1, vals=2)
z <- rast(xmin=-80, xmax=-30, ymax=50, ymin=20, res=1, vals=3)
m1 <- mosaic(x, y, z)
m2 <- mosaic(z, y, x)
# with many SpatRasters, make a SpatRasterCollection from a list
rlist <- list(x, y, z)
rsrc <- sprc(rlist)
m <- mosaic(rsrc)