terra (version 1.8-5)

trim: Trim a SpatRaster

Description

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="", ...)

Value

SpatRaster

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

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)