genproc {lsbclust}

Generalized Procrustes Rotation

Description

This function finds K orthogonal rotation matrices so that the rotated versions of the input configurations match each other optimally in the least-squares sense. The algorithm depends on the starting values for the rotation matrices. At present identity matrices are used as starting values. Only rotations / reflections are considered – no scaling or translation factors are included.

Usage

genproc(configs, maxit = 50L, reltol = 1e-06, random = FALSE)

Arguments

configs

A list of original configuration matrices

maxit

The maximum number of iterations allowed

reltol

The relative error tolerance for determining numeric convergence.

random

Logical indicating whether or not to use random starts (only applicable when the dimensionality is two).

References

Gower, J. C., & Dijksterhuis, G. B. (2004). Procrustes problems (Vol. 3). Oxford: Oxford University Press.