labdsv (version 1.8-0)

orddist: Ordination Point Pair-Wise Distance Calculation

Description

Calculates the pair-wise distances of all points in an ordination. The function is simply a wrapper for the ‘dist’ function, but simplifies managing ordinations that store their coordinates under different names, as well as managing the desired dimensionality of the calculations.

Usage

orddist(x,dim)

Arguments

x

an ordination object from pca, pco, nmds, fso

dim

the desired dimensionality to be included in the calculations (must be <= number of dimensions of the ordinations)

Value

an object of class ‘dist’ is produced

Examples

# NOT RUN {
data(bryceveg) # produces a vegetation data.frame
dis.bc <- dsvdis(bryceveg,'bray/curtis') # creates a Bray/Curtis 
                                         #dissimilarity matrix
pco.bc <- pco(dis.bc,2) # produces a two-dimensional Principal Coordinates 
                        #Ordination object
orddist(pco.bc,dim=2)
# }