terra: setValues – R documentation

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setValues

Set the values of raster cells or of geometry attributes

Description

Set cell values of a SpatRaster or the attributes of a SpatVector. For large SpatRaster objects use init instead to set values.

Usage

## S4 replacement method for signature 'SpatRaster,ANY'
values(x)<-value

## S4 method for signature 'SpatRaster,ANY'
setValues(x, values)

## S4 replacement method for signature 'SpatVector,ANY'
values(x)<-value

Arguments

`x`	SpatRaster or SpatVector
`value`	For SpatRaster: matrix or numeric, the length must match the total number of cells (ncell(x) * nlyr(x)), or be a single value. For SpatVector: data.frame, matrix, vector, or NULL
`values`	Same as for `value`

Value

The same object type as x

Examples

f <- system.file("ex/elev.tif", package="terra")
r <- rast(f)
x <- setValues(r, 1:ncell(r))
x
values(x) <- runif(ncell(x))
x
head(x)

f <- system.file("ex/lux.shp", package="terra")
v <- vect(f)
values(v) <- data.frame(ID=1:12, name=letters[1:12])
head(v)

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