Improved likelihood ratio and score tests on concentration parameters of von Mises-Fisher distributions

Y Watamori, Peter Edmund Jupp

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Explicit expressions are given for the likelihood-ratio and quadratic score statistics for standard hypotheses on concentrations of von Mises-Fisher distributions. Bartlett corrections of the former and higher-order approximations to the null distributions of the latter are provided. (c) 2004 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)93-102
JournalStatistics and Probability Letters
Volume72
Issue number2
DOIs
Publication statusPublished - 15 Apr 2005

Keywords

  • Bartlett correction
  • directional statistics
  • generalised Bartlett correction
  • Langevin distribution

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