terra (version 1.3-22)

freq: Frequency table

Description

Frequency table of the values of a SpatRaster. NAs are not counted unless value=NA.

Usage

# S4 method for 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. This value can be NA

Value

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

See Also

freq

Examples

# NOT RUN {
r <- rast(nrows=10, ncols=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)

# }