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Install

install.packages('RPS')

Monthly Downloads

26

Version

1.0.1

License

GPL-3

Maintainer

Guillermo Andres Pacheco

Last Published

July 27th, 2018

Functions in RPS (1.0.1)

cmdistance_RPS

This function computes the least-squares Procrustes distance between each pair of matrices (configurations of landmarks) from the input set
eucunivMDS_RPS

Given a n x n distance matrix D (not necessarily Euclidean) and a initial set X0 of n seeds in k dim (that is, an initial n x k matrix), this function finds a set of n points in k dimensions X (a final n x k matrix) through a least-squares criterion such that the n x n matrix Dk of euclidean distances among these new points X is as close as possible to D.
matchingsymm_RPS

This function obtains the individual resistant-symmetric shape for 2D matching-symmetry data. The input is an array A of size n (landmarks) x p (dimensions) x 2k (objects: the left-right sides for each). Configurations are ordered in this way: left side Object 1, right side Object 1, left side Object 2, right side Object 2, etc
objectsymm_RPS

This function obtains the individual resistant-symmetric shape for 2D object-symmetry data. The input is an array A of size n (landmarks) x p (dimensions) x k (objects) Landmarks must be in this order: saggital (or unpaired) landmarks first, then left paired landmarks and finally right paired landmarks. Configurations are ordered in this way: L side Object 1 and R side Object 1, L side Object 2 and R side Object 2, etc
resdistance_RPS

This function computes the a resistant distance between each pair of matrices from the input set
resunivMDS_RPS

Given a n x n distance matrix D (not necessarily Euclidean) and a initial set X0 (that is, a n x k matrix) of n seeds in k dim, this function finds a set of n points in k dimensions X (that is, a k x n matrix) using a resistant criterion such that the n x n matrix Dk of euclidean distances among these new points X is as close as possible to D.
procrustesCM_RPS

This function s simply a wrapper for the geomorph function gpagen that performs the classical least squares Procrustes superimposition of the input configurations of landmarks.
'RPS'

Resistant Procrustes Superposition Package in R (RPS): a novel package for landmark-based resistant shape analysis
readlandtxtMorphJ_RPS

Reads a MorphoJ .txt file and returns it as an array of n x k matrices in s dimensions (s=2 or s=3)