Trim a SpatRaster — trim • terra

Trim (shrink) a SpatRaster by removing outer rows and columns that are NA or another value.

Usage

# S4 method for SpatRaster
trim(x, padding=0, value=NA, filename="", ...)

Arguments

x: SpatRaster
padding: integer. Number of outer rows/columns to keep
value: numeric. The value of outer rows or columns that are to be removed
filename: character. Output filename
...: additional arguments for writing files as in writeRaster

Value

SpatRaster

Examples

r <- rast(ncols=10, nrows=10, xmin=0,xmax=10,ymin=0,ymax=10)
v <- rep(NA, ncell(r))
v[c(12,34,69)] <- 1:3
values(r) <- v
s <- trim(r)