terra: copy – R documentation

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copy

Deep copy

Description

Make a deep copy of a SpatRaster or SpatVector. This is occasionally useful when wanting to use a replacement function in a shallow copy. That is a copy that was created like this: x <- y. If you use a replacement function to change an object, its shallow copies also change.

Usage

## S4 method for signature 'SpatRaster'
copy(x)

## S4 method for signature 'SpatVector'
copy(x)

Arguments

`x`	SpatRaster or SpatVector

Value

Same as x

Examples

r <- rast(ncols=10, nrows=10, nl=3)
tm <- as.Date("2001-05-03") + 1:3
time(r) <- tm
time(r)
x <- r
time(x) <- tm + 365
time(x)
time(r)

y <- copy(r)
time(y) <- tm - 365
time(y)
time(r)

# or make a new object like this
z <- rast(r)
time(z) <- tm
time(z)
time(r)

terra

Spatial Data Analysis

v1.2-10

GPL (>= 3)

Authors

Robert J. Hijmans [cre, aut] (<https://orcid.org/0000-0001-5872-2872>), Roger Bivand [ctb] (<https://orcid.org/0000-0003-2392-6140>), Karl Forner [ctb], Jeroen Ooms [ctb] (<https://orcid.org/0000-0002-4035-0289>), Edzer Pebesma [ctb] (<https://orcid.org/0000-0001-8049-7069>)

Initial release

2021-05-12