Create a co-located co-occurrence matrix (cocoma)

Source: R/get_cocoma.R

Create a co-located co-occurrence matrix (cocoma)

get_cocoma(x, y, neighbourhood = 4, classes = NULL)

Arguments

x

A matrix with categories
y

A matrix with categories
neighbourhood

The number of directions in which cell adjacencies are considered as neighbours: 4 (rook's case) or 8 (queen's case). The default is 4.
classes

A list of length 2 with the values of selected classes from the x and y objects. It is used to calculate cocoma only for selected classes.

Value

A co-located co-occurrence matrix

Examples

library(comat)
data(raster_x, package = "comat")
data(raster_x_na, package = "comat")

coom = get_cocoma(raster_x, raster_x_na)
coom
#>   1 2 3
#> 1 3 1 3
#> 2 0 2 1
#> 3 2 2 2

get_cocoma(raster_x, raster_x_na, classes = list(c(1, 2), 3))
#>   3
#> 1 3
#> 2 1