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freq

Frequency table

Description

Frequency table of the values of a SpatRaster. NAs are not counted.

Usage

## S4 method for signature 'SpatRaster'
freq(x, digits=0, value=NULL, bylayer=TRUE)

Arguments

x

SpatRaster
bylayer

logical. If TRUE tabulation is done by layer
digits

integer. Used for rounding the values before tabulation. Ignored if NA
value

numeric. An optional single value to only count the number of cells with that value

Value

matrix with 2 columns (value, count) or, if bylayer=TRUE three layers (layer, value, count).

See Also

Examples

r <- rast(nrow=10, ncol=10)
set.seed(2)
values(r) <- sample(5, ncell(r), replace=TRUE)

freq(r, FALSE)
freq(r)

x <- c(r, r/3)
freq(x, FALSE)
freq(x)
freq(x, digits=1)
freq(x, digits=-1)

freq(x, value=5)
terra

Spatial Data Analysis

v1.2-10
GPL (>= 3)
Authors
Robert J. Hijmans [cre, aut] (<https://orcid.org/0000-0001-5872-2872>), Roger Bivand [ctb] (<https://orcid.org/0000-0003-2392-6140>), Karl Forner [ctb], Jeroen Ooms [ctb] (<https://orcid.org/0000-0002-4035-0289>), Edzer Pebesma [ctb] (<https://orcid.org/0000-0001-8049-7069>)
Initial release
2021-05-12

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