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PolyChord / PolyChordLite

Public version of PolyChord: See polychord.co.uk for PolyChordPro
https://polychord.io/
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tracking convergence of the chain #91

Open denijane opened 2 years ago

denijane commented 2 years ago

Hi, I wanted to know is there any way to track convergence, especially for an already produced chain? I'm plotting the chain from the text file and it looks converged, but is there a way to quantify it? I read there are some measures and found this function of getdist "getConvergeTests(test_confidence=0.95, writeDataToFile=False, what=('MeanVar', 'GelmanRubin', 'SplitTest', 'RafteryLewis', 'CorrLengths'), filename=None, feedback=False" ) but I'm not sure if I can use it on the chains produced by polychord or I should use something else, inherent to the polychord? Best

appetrosyan commented 1 year ago

Have a look at Fowlie and insertion ranks. https://andrewfowlie.github.io/talks/tools_2021.pdf

williamjameshandley commented 10 months ago

This is something which should be incorporated into anesthetic, in analogy to @lukashergt's PR: https://github.com/handley-lab/anesthetic/pull/258

williamjameshandley commented 4 months ago

https://github.com/handley-lab/anesthetic/pull/363 may be of help here