Statistics and Computing

, Volume 19, Issue 2, pp 189–201

Bayesian estimation of quantile distributions

Article

Abstract

Use of Bayesian modelling and analysis has become commonplace in many disciplines (finance, genetics and image analysis, for example). Many complex data sets are collected which do not readily admit standard distributions, and often comprise skew and kurtotic data. Such data is well-modelled by the very flexibly-shaped distributions of the quantile distribution family, whose members are defined by the inverse of their cumulative distribution functions and rarely have analytical likelihood functions defined. Without explicit likelihood functions, Bayesian methodologies such as Gibbs sampling cannot be applied to parameter estimation for this valuable class of distributions without resorting to numerical inversion. Approximate Bayesian computation provides an alternative approach requiring only a sampling scheme for the distribution of interest, enabling easier use of quantile distributions under the Bayesian framework. Parameter estimates for simulated and experimental data are presented.

Keywords

Approximate Bayesian computation Posterior distribution Quantile distribution Response time data 

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • D. Allingham
    • 1
  • R. A. R. King
    • 2
  • K. L. Mengersen
    • 3
  1. 1.Centre for Complex Dynamic Systems and Control, School of Mathematical and Physical SciencesThe University of NewcastleCallaghanAustralia
  2. 2.School of Mathematical and Physical SciencesThe University of NewcastleCallaghanAustralia
  3. 3.School of Mathematical SciencesQueensland University of TechnologyBrisbaneAustralia

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