prabclus (version 2.0-2)

con.regmat: Connected regions per species

Description

Returns a vector of the numbers of connected regions per species for a presence-absence matrix.

Usage

con.regmat(regmat, neighbors, count = FALSE)

Arguments

regmat

0-1-matrix. Columns are species, rows are regions.

neighbors

A list with a component for every region. The components are vectors of integers indicating neighboring regions. A region without neighbors (e.g., an island) should be assigned a list numeric(0).

count

logical. If TRUE, the number of the currently processed species is printed.

Value

• Vector of numbers of connected regions per species.

Details

Uses con.comp.

See Also

con.comp, prabtest

Examples

data(nb)
# Note: If you do not use the installed package, replace this by
# nb <- list()
# for (i in 1:34)
#   nb <- c(nb,list(scan(file="(path/)nb.dat",
#                   skip=i-1,nlines=1)))
set.seed(888) 
cp <- cluspop.nb(nb, p.nb=0.1, n.species=10, clus.specs=9,
                 reg.group=1:17,vector.species=c(10))
con.regmat(cp,nb)