selectHigh function

select cells with high or low values

Identify n cells that have the highest or lowest values in the first layer of a SpatRaster. methods

## S4 method for signature 'SpatRaster'
selectHighest(x, n, low=FALSE)

Arguments

• x: SpatRaster. Only the first layer is processed
• n: The number of cells to select
• low: logical. If TRUE, the lowest values are selected instead of the highest values

Returns

SpatRaster

Examples

f <- system.file("ex/elev.tif", package="terra")
r <- rast(f)
x <- selectHighest(r, 1000)
y <- selectHighest(r, 1000, TRUE)

m <- merge(y-1, x)
levels(m) <- data.frame(id=0:1, elevation=c("low", "high"))
plot(m)