labdsv (version 1.3-1)

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

Value

• an object of class dist is produced

References

http://ecology.msu.montana.edu/labdsv/R/labdsv

Examples

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)