RichnessGrid: Species Richness and Abundance Grids from Point Records

In azizka/speciesgeocodeR: Prepare Species Distributions for the Use in Phylogenetic Analyses

Species Richness and Abundance Grids from Point Records

Description

A species richness or record abundance grid.

Usage

RichnessGrid(x, ras, reso = 1, type = "spnum")

Arguments

x	an object of the class spgeoOUT or a data.frame. If x is a data.frame, it must comprise three columns,: ‘species’, ‘longitude’ and ‘latitude’.
ras	an object of the class raster defining the extent and resolution for the richness grid. If missing, estimated from the data.
reso	numeric. resolution of the raster in decimal degree, only specify if ras is missing.
type	character string indicating the type of data displayed: “spnum” = number of species per grid cell, “abu” = the number of occurrence points per grid cell.

Value

a raster object.

Note

See https://github.com/azizka/speciesgeocodeR/wiki for more details and tutorials.

See Also

MapRichness, RangeRichness.

Examples

# for x = data.frame
data(lemurs)
dat <- RichnessGrid(lemurs, reso = 1, type = "spnum")

azizka/speciesgeocodeR documentation built on Sept. 5, 2023, 3:45 a.m.