sds function

Create a SpatRasterDataset

Methods to create a SpatRasterDataset. This is an object to hold "sub-datasets", each a SpatRaster that in most cases will have multiple layers.

See describe for getting information about the sub-datasets present in a file. methods

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

## S4 method for signature 'character'
sds(x, ids=0, opts=NULL, raw=FALSE)

## S4 method for signature 'SpatRaster'
sds(x, ...) 

## S4 method for signature 'list'
sds(x) 

## S4 method for signature 'array'
sds(x, crs="", extent=NULL)

Arguments

• x: character (filename), or SpatRaster, or list of SpatRasters, or missing. If multiple filenames are provided, it is attempted to make SpatRasters from these, and combine them into a SpatRasterDataset
• ids: optional. vector of integer subdataset ids. Ignored if the first value is not a positive integer
• opts: character. GDAL dataset open options
• raw: logical. If TRUE, scale and offset values are ignored
• crs: character. Description of the Coordinate Reference System (map projection) in PROJ.4, WKT or authority:code notation. If this argument is missing, and the x coordinates are within -360 .. 360 and the y coordinates are within -90 .. 90, longitude/latitude is assigned
• extent: SpatExtent
• ...: additional SpatRaster objects

Returns

SpatRasterDataset

See Also

describe

Examples

s <- rast(system.file("ex/logo.tif", package="terra"))   
x <- sds(s, s/2)
names(x) <- c("first", "second")
x
length(x)

# extract the second SpatRaster
x[2]

a <- array(1:9, c(3,3,3,3))
sds(a)