Returns the minimum or maximum value of a RasterLayer or layer in a RasterStack
minValue(x, ...)
maxValue(x, ...)RasterLayer or RasterStack object
Additional argument: layer number (for RasterStack or RasterBrick objects)
a number
If a Raster* object is created from a file on disk, the min and max values are often not known (depending on the file format). You can use setMinMax to set them in the Raster* object.
# NOT RUN {
r <- raster()
r <- setValues(r, 1:ncell(r))
minValue(r)
maxValue(r)
r <- setValues(r, round(100 * runif(ncell(r)) + 0.5))
minValue(r)
maxValue(r)
r <- raster(system.file("external/test.grd", package="raster"))
minValue(r)
maxValue(r)
# }
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