PolyChord is a Bayesian inference tool for the simultaneous calculation of evidences and sampling of posterior distributions. It is a variation on John Skilling's Nested Sampling, utilizing Slice Sampling to generate new live points. It performs well on moderately high dimensional ( 100s D) posterior distributions, and can cope with arbitrary degeneracies and multimodality.
Astrophysics Source Code Library
- Pub Date:
- February 2015