raster: stack – R documentation

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stack

Create a RasterStack object

Description

A RasterStack is a collection of RasterLayer objects with the same spatial extent and resolution. A RasterStack can be created from RasterLayer objects, or from raster files, or both. It can also be created from a SpatialPixelsDataFrame or a SpatialGridDataFrame object.

Usage

## S4 method for signature 'character'
stack(x, ..., bands=NULL, varname="", native=FALSE, RAT=TRUE, quick=FALSE)

## S4 method for signature 'Raster'
stack(x, ..., layers=NULL)

## S4 method for signature 'missing'
stack(x)

## S4 method for signature 'list'
stack(x, bands=NULL, native=FALSE, RAT=TRUE, ...)

Arguments

`x`	filename (character), Raster* object, missing (to create an empty RasterStack), SpatialGrid, SpatialPixels, or list (of filenames and/or Raster* objects). If `x` is a list, additional arguments `...` are ignored
`bands`	integer. which bands (layers) of the file should be used (default is all layers)
`layers`	integer (or character with layer names) indicating which layers of a RasterBrick should be used (default is all layers)
`native`	logical. If `TRUE` native drivers are used instead of gdal drivers (where available, such as for BIL and Arc-ASCII files)
`RAT`	logical. If `TRUE` a raster attribute table is created for files that have one
`quick`	logical. If `TRUE` the extent and resolution of the objects are not compared. This speeds up the creation of the RasteStack but should be use with great caution. Only use this option when you are absolutely sure that all the data in all the files are aligned, and you need to create RasterStack for many (>100) files
`varname`	character. To select the variable of interest in a NetCDF file (see `raster`)
`...`	additional filenames or Raster* objects

Value

RasterStack

Examples

# file with one layer
fn <- system.file("external/test.grd", package="raster")
s <- stack(fn, fn)
r <- raster(fn)
s <- stack(r, fn) 
nlayers(s)

# file with three layers
slogo <- stack(system.file("external/rlogo.grd", package="raster")) 
nlayers(slogo)
slogo

raster

Geographic Data Analysis and Modeling

v3.4-10

GPL (>= 3)

Authors

Robert J. Hijmans [cre, aut] (<https://orcid.org/0000-0001-5872-2872>), Jacob van Etten [ctb], Michael Sumner [ctb], Joe Cheng [ctb], Dan Baston [ctb], Andrew Bevan [ctb], Roger Bivand [ctb], Lorenzo Busetto [ctb], Mort Canty [ctb], Ben Fasoli [ctb], David Forrest [ctb], Aniruddha Ghosh [ctb], Duncan Golicher [ctb], Josh Gray [ctb], Jonathan A. Greenberg [ctb], Paul Hiemstra [ctb], Kassel Hingee [ctb], Institute for Mathematics Applied Geosciences [cph], Charles Karney [ctb], Matteo Mattiuzzi [ctb], Steven Mosher [ctb], Babak Naimi [ctb], Jakub Nowosad [ctb], Edzer Pebesma [ctb], Oscar Perpinan Lamigueiro [ctb], Etienne B. Racine [ctb], Barry Rowlingson [ctb], Ashton Shortridge [ctb], Bill Venables [ctb], Rafael Wueest [ctb]

Initial release

2021-05-02