Cited by 3,304Advanced Statistical Methods and ModelsStatistical Methods and ApplicationsStatistical Distribution Estimation and Applications

Distance‐Based Tests for Homogeneity of Multivariate Dispersions

Anderson, Marti J.·2006·Biometrics

Abstract

Summary The traditional likelihood‐based test for differences in multivariate dispersions is known to be sensitive to nonnormality. It is also impossible to use when the number of variables exceeds the number of observations. Many biological and ecological data sets have many variables, are highly skewed, and are zero‐inflated. The traditional test and even some more robust alternatives are also unreasonable in many contexts where measures of dispersion based on a non‐Euclidean dissimilarity would be more appropriate. Distance‐based tests of homogeneity of multivariate dispersions, which can be based on any dissimilarity measure of choice, are proposed here. They rely on the rotational invariance of either the multivariate centroid or the spatial median to obtain measures of spread using principal coordinate axes. The tests are straightforward multivariate extensions of Levene's test, with P ‐values obtained either using the traditional F ‐distribution or using permutation of either least‐squares or LAD residuals. Examples illustrate the utility of the approach, including the analysis of stabilizing selection in sparrows, biodiversity of New Zealand fish assemblages, and the response of Indonesian reef corals to an El Niño. Monte Carlo simulations from the real data sets show that the distance‐based tests are robust and powerful for relevant alternative hypotheses of real differences in spread.

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Crossref · 10.1111/j.1541-0420.2005.00440.x

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  • Statistics that exploit pairwise sequence similarity can be used as alternatives to classical summary statistic measures of sequence diversity differences between groups.

    “Alternatively, statistics that exploit pairwise sequence similarity can be used65 as alternatives to classical summary statistic measures of sequence diversity differences between groups.”

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Authors
Anderson, M. J.
Affiliations
University of Auckland (NZ)
Corresponding author
Anderson, Marti J.
Venue
Biometrics
Published
2005-10-20
Volume
62
Issue
1
Pages
245-253
ISSN
  • 0006-341X (ISSN-L)
  • 1541-0420
OpenAlex
W2118327902
Cited by
3,304
References
55
Citations by year
2026: 482 · 2025: 259 · 2024: 221 · 2023: 194 · 2022: 268 · 2021: 294 · 2020: 280 · 2019: 215 · 2018: 207 · 2017: 166 · 2016: 161 · 2015: 114 · 2014: 101 · 2013: 110 · 2012: 77
FWCI
12.45
Type
journal article
Language
en
Open access
closed
Locations
  • Biometrics (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Topics
  • Physical Sciences › Mathematics › Statistics and Probability › Advanced Statistical Methods and Models
  • Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods and Applications
  • Physical Sciences › Mathematics › Statistics and Probability › Statistical Distribution Estimation and Applications
Keywords
multivariate dispersion, dissimilarity measures, Levene's test, spatial median, rotation invariance, principal coordinates, permutation tests, robustness to non-normality, high-dimensional data, stabilizing selection, reef-building corals, El Niño, biodiversity
MeSH terms
Animals, Ecology, Fishes, Multivariate Analysis, Anthozoa, Biodiversity, Sparrows

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