dist.dudi: Computation of the Distance Matrix from a Statistical Triplet

In ade4: Analysis of Ecological Data : Exploratory and Euclidean Methods in Environmental Sciences

Description

computes for a statistical triplet a distance matrix.

Usage

dist.dudi(dudi, amongrow = TRUE)

Arguments

dudi	a duality diagram, object of class dudi
amongrow	a logical value computing the distance if TRUE, between rows, if FALSE between columns.

Value

an object of class dist

Author(s)

Daniel Chessel
Stéphane Dray [e-mail]

Examples

data (meaudret)
pca1 <- dudi.pca(meaudret$env, scan = FALSE)
sum((dist(scalewt(meaudret$env)) - dist.dudi(pca1))^2)
#[1] 4.045e-29 the same thing

Example output

[1] 3.774206e-29

ade4 documentation built on May 2, 2019, 5:50 p.m.