Compute quantiles for each cell across the layers of a SpatRaster.
You can use use global(x, fun=quantile) to instead compute quantiles across cells for each layer.
You can also use this method to compute quantiles of the numeric variables of a SpatVector.
# S4 method for SpatRaster
quantile(x, probs=seq(0, 1, 0.25), na.rm=FALSE, filename="", ...) # S4 method for SpatVector
quantile(x, probs=seq(0, 1, 0.25), ...)
SpatRaster with layers representing quantiles
SpatRaster or SpatVector
numeric vector of probabilities with values in [0,1]
logical. If TRUE, NA's are removed from x before the quantiles are computed
character. Output filename
additional arguments for writing files as in writeRaster
app
r <- rast(system.file("ex/logo.tif", package="terra"))
rr <- c(r/2, r, r*2)
qr <- quantile(rr)
qr
if (FALSE) {
# same but slower
qa <- app(rr, quantile)
}
#quantile by layer instead of by cell
qg <- global(r, quantile)
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