Object similar to the MaxEnt SWD format that hosts the species name, the coordinates of the locations and the value of the environmental variables at the location places.
speciescharacter. Name of the species.
coordsdata.frame. Coordinates of the locations.
datadata.frame. Value of the environmental variables at location sites.
panumeric. Vector with 1 for presence and 0 for
absence/background locations.
The object can contains presence/absence, presence/background,
presence only or absence/background only data. Use the
prepareSWD function to create the object.