sds: Create a SpatRasterDataset

In terra: Spatial Data Analysis

Create a SpatRasterDataset

Description

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.

Usage

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

## S4 method for signature 'character'
sds(x, ids=0)

## 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 SpatRaster objects, 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
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

Value

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)

terra documentation built on Oct. 13, 2023, 5:08 p.m.