PupfishHeads

<p>Landmark data from Cyprinodon pecosensis head shapes, with 
variables for 
sex, month and year sampled, locality, head size, and coordinates of 
landmarks for head shape,
per specimen.  These data are a subset of a larger data set.</p>

Linear model calculations are made for many random versions of data.
Using residual randomization in a permutation procedure, sums of squares are
calculated over many permutations to generate empirical probability distributions
for evaluating model effects.  This packaged is described by
Collyer & Adams (2018).  Additionally, coefficients, statistics, fitted values, and residuals generated over many
permutations can be used for various procedures including pairwise tests, prediction, classification, and
model comparison.  This package should provide most tools one could need for the analysis of
high-dimensional data, especially in ecology and evolutionary biology, but certainly other fields, as well.

Michael Collyer

RRPP

Linear Model Evaluation with Randomized Residuals in a
Permutation Procedure

PupfishHeads: Landmarks on pupfish heads

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