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, 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

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. 14, 2024, 5:07 p.m.