use chain serial rather than logical index with _DefaultTrace.insert #1590
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Looks good, thanks. It should probably be also added to pymc-devs/pymc#4489 better, which is where the converter will live in 4.0+ |
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Thanks, I've pushed the change directly to the |
OriolAbril
approved these changes
Mar 2, 2021
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Can you add it to maintenance and fixes in the changelog? I think it is good to merge after that |
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Yep, done! (Not sure you'd get a notification after a commit push? Hence this comment :) ) |
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Thanks! |
utkarsh-maheshwari
pushed a commit
to utkarsh-maheshwari/arviz
that referenced
this pull request
May 27, 2021
…rviz-devs#1590) * use chain serial rather than logical index with _DefaultTrace.insert * add PR arviz-devs#1590 to changelog
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This is part of a fix for an issue in PyMC3: pymc-devs/pymc#4469 . A trace could have chains that are not necessarily indexed 0, 1, .... However,
_DefaultTrace.insertdoes take an index 0, 1, ... So, the index argument intoinsertshould be zero-based. This PR decouples thechainindex (which refers to a logical chain index, possibly starting at 1 or whatever) from the index passed to_DefaultTrace.insert.