terra (version 1.0-7)

mask: Mask values in a SpatRaster

Description

Create a new SpatRaster that has the same values as SpatRaster x, except for the cells that are NA (or another maskvalue) in another SpatRaster (the 'mask'), or not covered by a SpatVector. These cells become NA (or another updatevalue).

Usage

# S4 method for SpatRaster,SpatRaster
mask(x, mask, inverse=FALSE, maskvalues=NA, 
   updatevalue=NA, filename="", overwrite=FALSE, wopt=list(), ...)
   
# S4 method for SpatRaster,SpatVector
mask(x, mask, inverse=FALSE, updatevalue=NA,
	touches=is.lines(mask), filename="", overwrite=FALSE, wopt=list(), ...)

Arguments

x

SpatRaster

mask

SpatRaster

inverse

logical. If TRUE, areas on mask that are _not_ the maskvalue are masked

maskvalues

numeric. The value(s) in mask that indicates the cells of x that should become updatevalue (default = NA)

updatevalue

numeric. The value that cells of x should become if they are not covered by mask (and not NA)

touches

logical. If TRUE, all cells touched by lines or polygons will be masked, not just those on the line render path, or whose center point is within the polygon

filename

character. Output filename. Optional

overwrite

logical. If TRUE, filename is overwritten

wopt

list. Options for writing files as in writeRaster

...

additional arguments. None implemented

Value

SpatRaster

See Also

crop

Examples

# NOT RUN {
r <- rast(ncol=10, nrow=10)
m <- rast(ncol=10, nrow=10)
values(r) <- 1:100
set.seed(1965)
x <- round(3 * runif(ncell(r)))
x[x==0] <- NA
values(m) <- x
mr <- mask(r, m)
# }