sort: Sort a SpatRaster or SpatVector

In terra: Spatial Data Analysis

Sort a SpatRaster or SpatVector

Description

Sort the cell values of a SpatRaster across layers. You can also compute the sorting order.

Or sort the records of SpatVector (or data.frame) by specifying the column number(s) or names(s) to sort on.

Usage

## S4 method for signature 'SpatRaster'
sort(x, decreasing=FALSE, order=FALSE, filename="", ...)

## S4 method for signature 'SpatVector'
sort(x, v, decreasing=FALSE)

Arguments

x	SpatRaster
decreasing	logical. If TRUE, sorting is in decreasing order
order	logical. If TRUE the sorting order is returned instead of the sorted values
filename	character. Output filename
...	additional arguments for writing files as in writeRaster
v	character or numeric indicating the column(s) to sort on

Value

SpatRaster

Examples

f <- system.file("ex/elev.tif", package="terra")
r <- rast(f)
r <- c(r, r/2, r*2)
sort(r)

ord <- sort(r, order=TRUE)
# these two are the same 
ord[[1]]
which.min(r)

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