Initial AbstractMCMC.step should not sample
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should not perform any sampling of the parameters.
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devmotion
previously approved these changes
Apr 24, 2024
yebai
approved these changes
Nov 1, 2024
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Is this good to merge? Except that we should also bump a breaking version number. |
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I think there are still some tests that need to be updated, but otherwise, yeah it should be good:) |
torfjelde
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Jan 13, 2025
This reverts commit 32d0446.
torfjelde
added a commit
that referenced
this pull request
Jan 13, 2025
This reverts commit 32d0446.
|
Accidentally merged this 🤦 Will re-open |
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Generally speaking, the first
AbstractMCMC.stepshould just construct the initial transition and state, not actually perform any sampling. If it performs sampling in the initial step, it becomes increasingly difficult to test that arguments such asinitial_paramsandinitial_stateare properly respected (since we can't just compare the resultinginitial_paramswith the ones produced by the first step). Moreover, it can hide certain behaviors from the user since a traceplot will show the "starting value" as something different than what they set.This PR just makes the initial
AbstractMCMC.stepdo exactly this.Should be a quick merge. @devmotion @yebai @xukai92