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

Yoko Watamori and Peter E. Jupp

Statistics & Probability Letters, 2005, vol. 72, issue 2, 93-102

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.

Keywords: Bartlett; correction; Directional; statistics; Generalised; Bartlett; correction; Langevin; distribution (search for similar items in EconPapers)
Date: 2005
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Citations: View citations in EconPapers (2)

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