composition_index {spatialising}

Composition imbalance index

Description

Calculates composition imbalance index (also known as the m index) – a sum of cell’s values over the entire site divided by the number of cell in the site. m has a range from -1 (site completely dominated by the -1 values) to 1 (site completely dominated by the 1 values).

Usage

composition_index(x)

Arguments

x

SpatRaster or matrix containing two values: -1 and 1

Value

A numeric vector

See Also

kinetic_ising()

Examples

data(r_start, package = "spatialising")
composition_index(r_start)
ts1 = kinetic_ising(r_start, B = -0.3, J = 0.7)
composition_index(ts1)
ts2 = kinetic_ising(r_start, B = -0.3, J = 0.7, updates = 2)
composition_index(ts2)


  library(terra)
  r1 = rast(system.file("raster/r_start.tif", package = "spatialising"))
  composition_index(r1)
  r2 = kinetic_ising(r1, B = -0.3, J = 0.7)
  composition_index(r2)