| Issue |
A&A
Volume 614, June 2018
|
|
|---|---|---|
| Article Number | A25 | |
| Number of page(s) | 4 | |
| Section | Numerical methods and codes | |
| DOI | https://doi.org/10.1051/0004-6361/201732461 | |
| 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
e-mail: l.lucy@imperial.ac.uk
Received:
14
December
2017
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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