niche_difer_sp {specieschrom}

Nested function for niche overlapping estimation with 'combina_niche3.R'.

Description

Select the couple of species for niche overlapping (index D) estimation.

Usage

niche_difer_sp(sp_chr, Thres_T)

Arguments

sp_chr

a three dimensional matrix with the species chromatograms (alpha category by p environmental variables by species)

Thres_T

an integer corresponding to the threshold of minimal abundance in a category for the niche breadth estimation

Value

index D