Minimum and maximum values
Returns the minimum or maximum value of a RasterLayer or layer in a RasterStack
minValue(x, ...) maxValue(x, ...)
x |
RasterLayer or RasterStack object |
... |
Additional argument: layer number (for RasterStack or RasterBrick objects) |
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.
a number
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)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.