Volume 614, June 2018
|Number of page(s)||4|
|Section||Numerical methods and codes|
|Published online||08 June 2018|
Bayesian model checking: A comparison of tests
Astrophysics Group, Blackett Laboratory, Imperial College London,
Prince Consort Road,
London SW7 2AZ, UK
Accepted: 7 February 2018
Two procedures for checking Bayesian models are compared using a simple test problem based on the local Hubble expansion. Over four orders of magnitude, p-values derived from a global goodness-of-fit criterion for posterior probability density functions agree closely with posterior predictive p-values. The former can therefore serve as an effective proxy for the difficult-to-calculate posterior predictive p-values.
Key words: methods: statistical / binaries: general
© ESO 2018
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