quasieuclid: Transformation of a distance matrice to a Euclidean one
In ade4: Analysis of Ecological Data: Exploratory and Euclidean Methods in Environmental Sciences
quasieuclid R Documentation
Transformation of a distance matrice to a Euclidean one
Description
transforms a distance matrix in a Euclidean one.
Usage
quasieuclid(distmat)
Arguments
distmat
an object of class dist
Details
The function creates a distance matrice with the positive eigenvalues of the Euclidean representation.
Only for Euclidean distances which are not Euclidean for numeric approximations (for examples, in papers as the following example).
Value
object of class dist containing a Euclidean distance matrice
Author(s)
Daniel Chessel
Stéphane Dray stephane.dray@univ-lyon1.fr
Examples
data(yanomama)
geo <- as.dist(yanomama$geo)
is.euclid(geo) # FALSE
geo1 <- quasieuclid(geo)
is.euclid(geo1) # TRUE
par(mfrow = c(2,2))
lapply(yanomama, function(x) plot(as.dist(x), quasieuclid(as.dist(x))))
par(mfrow = c(1,1))
ade4 documentation built on Feb. 16, 2023, 7:58 p.m.
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| quasieuclid | R Documentation |
Transformation of a distance matrice to a Euclidean one
Description
transforms a distance matrix in a Euclidean one.
Usage
quasieuclid(distmat)
Arguments
distmat |
an object of class |
Details
The function creates a distance matrice with the positive eigenvalues of the Euclidean representation.
Only for Euclidean distances which are not Euclidean for numeric approximations (for examples, in papers as the following example).
Value
object of class dist containing a Euclidean distance matrice
Author(s)
Daniel Chessel
Stéphane Dray stephane.dray@univ-lyon1.fr
Examples
data(yanomama) geo <- as.dist(yanomama$geo) is.euclid(geo) # FALSE geo1 <- quasieuclid(geo) is.euclid(geo1) # TRUE par(mfrow = c(2,2)) lapply(yanomama, function(x) plot(as.dist(x), quasieuclid(as.dist(x)))) par(mfrow = c(1,1))
R Package Documentation
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Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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