create.N.matrix {cooccur}

Function to create spp x spp matrix of potential co-occurring sites (N) from a potential spp x site matrix.

Description

Returns a spp x spp matrix of potential co-occurring sites from spp x site matrix of possible species occupancy.

Usage

create.N.matrix(mat)

Arguments

mat

spp x site matrix where 1 = potential occupancy and 0 = species does not occur.

Value

Returns a spp x spp matrix where the upper triangle contains N for each species pair.

Author(s)

Daniel M Griffith

See Also

pair, pair.attributes

Examples

#data(finches)
#N_matrix <- matrix(data = rbinom(n = nrow(finches)*ncol(finches),1,prob = 0.75),
#                        nrow = nrow(finches),
#                        ncol = ncol(finches)
#                        ,byrow = T)
#create.N.matrix(N_matrix)