SimpleProcrustes: Simple Procrustes Analysis

In MultBiplotR: Multivariate Analysis Using Biplots in R

Simple Procrustes Analysis

Description

Simple Procrustes Analysis for two matrices

Usage

  SimpleProcrustes(X, Y, centre = FALSE)

Arguments

X	Matrix of the first configuration.
Y	Matrix of the second configuration.
centre	Should the matrices be centred before the calculations?

Details

Orthogonal Procrustes Analysis for two configurations X and Y. The first configuration X is used as a reference and the second, Y, is transformed to match the reference as much as possible. X = s Y T + 1t +E = Z + E

Value

An object of class Procrustes.This has components:

X	First Configuration
Y	Second Configuration
Yrot	Second Configuration after the transformation
T	Rotation Matrix
t	Translation Vector
s	Scale Factor
rsss	Residual Sum of Squares
fit	Goodness of fit as percent of expained variance
correlations	Correlations among the columns of X and Z

Author(s)

Jose Luis Vicente-Villardon

References

Ingwer Borg, I. & Groenen, P. J.F. (2005). Modern Multidimensional Scaling. Theory and Applications. Second Edition. Springer

See Also

PrincipalCoordinates

Examples

data(spiders)

MultBiplotR documentation built on Nov. 21, 2023, 5:08 p.m.