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Calculates the difference between the maximum and minimum value

Usage

var_range(x, ...)

# S3 method for winmove
var_range(x, d, type, na.rm = TRUE, ...)

# S3 method for numeric
var_range(x, na.rm = TRUE, ...)

Arguments

x

RasterLayer. The data over which to calculate the range size

...

further arguments passed to or from other methods

d

numeric. If type=circle, the radius of the circle (in units of the CRS). If type=rectangle the dimension of the rectangle (one or two numbers)

type

character. The shape of the moving window

na.rm

logical. indicates whether NA values should be stripped before the computation proceeds. na.rm = TRUE is the default

Value

If class(x) == "winmove", a smoothed raster with the size of the range of values calculated within the specified moving window If class(x) == "numeric", a single value representing the size of the range of values in x

Examples


# load required data
data(cat_ls)
data(cont_ls)

# convert data to object of class winmove
cat_ls <- new("winmove", cat_ls)

# aggregate using a rectangular window with dimensions c(2,3)
d <- range(cont_ls, d = c(2,3), type = "rectangle")
#> Warning: Nothing to summarize if you provide a single RasterLayer; see cellStats

# convert data to object of class numeric
cont_ls <- raster::values(cont_ls)
d <- range(cont_ls)