Native particle MCMC (SMC/PG), revised: dropping AdvancedPS - #2859

Merged

sunxd3 merged 24 commits into

mainfrom

Aug 27, 2026

Commits on Aug 26, 2026

Reimplement particle MCMC (SMC and PG) natively, removing AdvancedPS

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91c9a10
particle_mcmc: Report the model's own varinfo updates, and slim the reference

yebai
and
claude
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d9e4704
particle_mcmc: Tidy two comments in the particle tests
yebai
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519b9a2
particle_mcmc: Mark the `@addlogprob!` helper as maybe-producing
yebai
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bf9f9b2
particle_mcmc: Resample between observations, not before the first
yebai
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c2f2399
particle_mcmc: Give PG a plain-data state so chains serialise
yebai
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08f0e8c
particle_mcmc: Report an ignored `initial_params` under PG
yebai
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ee405cd
particle_mcmc: Name the observation that kills the population
yebai
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b305718
particle_mcmc: Skip SMC's closing resample at equal weights
yebai
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9005380
particle_mcmc: Weight explicit prior terms
yebai
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b1b019b
particle_mcmc: Preserve SMC ESS in MCMCChains
yebai
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39c1aec
particle_mcmc: Reject empty particle populations
yebai
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d6d2faf
particle_mcmc: Produce explicit prior terms from `acclogprior!!`
yebai
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ecbf4ea
particle_mcmc: Give `SMC` the usual `verbose` default
yebai
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6594ecc
particle_mcmc: Trim the implementation and its comments
yebai
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cb9b352
HISTORY: Record the particle chain statistic renames
yebai
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e6b40e1
particle_mcmc: Cover both fields of a named `@addlogprob!`
yebai
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5c89d84

Commits on Aug 27, 2026

particle_mcmc: Drop the per-step seed refresh
yebai
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655bda0
particle_mcmc: Trim a helper, comments and the changelog
yebai
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acf2441
particle_mcmc: Validate the sampler constructor arguments
yebai
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095effe
particle_mcmc: Guard the produced prior weight with its accumulation
yebai
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e1ec12c
particle_mcmc: Report SMC's ignored state keywords
yebai
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ad1967a
particle_mcmc: Pin the offspring counts and the quadrature grids
yebai
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4c750c1
particle_mcmc: Cut redundant tests and halve the SSM particle counts
yebai
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7e3f1ff