rescale_by_landmark_distance

Convenience function which rescales a dataset of landmarks
based on a vector of distances between two landmarks

Tools for geometric morphometric analyses and multidimensional
data. Implements methods for morphological disparity analysis using
bootstrap and rarefaction,
as reviewed in Foote (1997) <doi:10.1146/annurev.ecolsys.28.1.129>.
Includes integration and modularity testing,
following Fruciano et al. (2013) <doi:10.1371/journal.pone.0069376>,
using Escoufier's RV coefficient as test statistic as well as
two-block partial least squares -
PLS, Rohlf and Corti (2000) <doi:10.1080/106351500750049806>.
Also includes vector angle comparisons,
orthogonal projection for data correction
(Burnaby (1966) <doi:10.2307/2528217>; Fruciano (2016) <doi:10.1007/s00427-016-0537-4>),
and parallel analysis for dimensionality reduction (Buja and Eyuboglu (1992)
<doi:10.1207/s15327906mbr2704_2>).

Carmelo Fruciano

GeometricMorphometricsMix

Heterogeneous Methods for Shape and Other Multidimensional Data

rescale_by_landmark_distance function

<dl><dt>Data</dt>
<dd>array k x p x n of k landmarks and p dimensions for n
observations (specimens)</dd>
<dt>lm1, lm2</dt>
<dd>index of the two landmarks whose inter-landmark
distance is known</dd>
<dt>lengths</dt>
<dd>vector of n lengths (distances between lm1 and lm2
in the appropriate scale)</dd></dl>

Arguments

Rescale landmark data based on interlandmark distances — rescale_by_landmark_distance

<dl>

<dt>Data</dt>
<dd>array k x p x n of k landmarks and p dimensions for n
observations (specimens)</dd>


<dt>lm1, lm2</dt>
<dd>index of the two landmarks whose inter-landmark
distance is known</dd>


<dt>lengths</dt>
<dd>vector of n lengths (distances between lm1 and lm2
in the appropriate scale)</dd>

</dl>

rescale_by_landmark_distance: Rescale landmark data based on interlandmark distances

Description

Usage

Value

Arguments

Details