selectRange,GRaster-method {fasterRaster} | R Documentation |
Select values from rasters in a stack based on values in another raster
Description
selectRange()
selects values from GRaster
s in a "stack" based on the values in another "selection" raster. For example, if the stack has three layers (call them A, B, and C), the "selection" raster could have values of 1, 2, or 3 in each cell. The raster that is returned will have values from A wherever the selection raster is 1, B from where it is 2, and C from where it is 3.
Usage
## S4 method for signature 'GRaster'
selectRange(x, y)
Arguments
x |
A |
y |
A |
Value
A GRaster
.
Examples
if (grassStarted()) {
# Setup
library(terra)
# Example data
madElev <- fastData("madElev")
# Convert a SpatRaster to a GRaster
elev <- fast(madElev)
# Make a stack of various versions of "elev" from which to select from:
x <- c(elev, 10 * elev, ln(elev), -1 * elev)
x
# Make a layer with random numbers between 1 and 4:
fun <- "= round(rand(0.5, 4.5))"
y <- app(elev, fun = fun)
selected <- selectRange(x, y)
}
[Package fasterRaster version 8.4.1.0 Index]