R: Quantiles of spatial data

quantile {terra}

R Documentation

Quantiles of spatial data

Description

Compute quantiles for each cell across the layers of a SpatRaster.

You can also use this method to compute the quantiles of the numeric variables of a SpatVector.

Usage

## S4 method for signature 'SpatRaster'
quantile(x, probs=seq(0, 1, 0.25), na.rm=FALSE, filename="", ...) 

## S4 method for signature 'SpatVector'
quantile(x, probs=seq(0, 1, 0.25), ...)

Arguments

`x`	SpatRaster or SpatVector
`probs`	numeric vector of probabilities with values in [0,1]
`na.rm`	logical. If `TRUE`, `NA`'s are removed from `x` before the quantiles are computed
`filename`	character. Output filename
`...`	additional arguments for writing files as in `writeRaster`

Value

SpatRaster with layers representing quantiles

Examples

r <- rast(system.file("ex/logo.tif", package="terra"))   
r <- c(r/2, r, r*2)
q <- quantile(r)
q

# same but slower
# qa <- app(r, quantile)