Alternative method to calculate alpha taxonomic diversity

Usage

spat.alpha2(bin, cores = 1, filename = "")

Arguments

bin: A SpatRaster with presence-absence data (0 or 1) for a set of species.
cores: A positive integer. If cores > 1, a 'parallel' package cluster with that many cores is created and used.
filename: Character. Save results if a name is provided.

Value

A SpatRaster object with richness.

Examples

# \donttest{
library(terra)
bin1 <- terra::rast(system.file("extdata", "ref.tif",
package = "divraster"))
spat.alpha2(bin1)
#> class       : SpatRaster 
#> dimensions  : 8, 8, 1  (nrow, ncol, nlyr)
#> resolution  : 0.125, 0.125  (x, y)
#> extent      : 0, 1, 0, 1  (xmin, xmax, ymin, ymax)
#> coord. ref. : lon/lat WGS 84 (EPSG:4326) 
#> source(s)   : memory
#> name        : Richness 
#> min value   :        2 
#> max value   :        8 
# }