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Comparison · Infra & APIs

BAS vs metagroup

A side-by-side editorial comparison of BAS and metagroup — release velocity, themes, recent moves, and the top alternatives to consider.

BAS vs metagroup: at a glance

FeatureBASmetagroup
SectorInfra & APIsInfra & APIs
Velocity score0.00.0
Sparks · 30d00
Top themesbayesian-statistics, model-averaging, mcmc, r-packagemeta-analysis, heterogeneity, clustering, first-release
Last editorial update1h ago54m ago
WebsiteVisit →Visit →

What is BAS?

A Bayesian model-averaging package spending its 2.0 on memory, not methods.

BAS performs Bayesian variable selection and model averaging for linear and generalized linear models, sampling from a model space too large to enumerate. The visible history splits cleanly: 2023-2024 added sampling machinery — an adaptive independent MCMC sampler with Horvitz-Thompson estimation, hereditary-constraint counting — while 2.0.0 in late 2025 reworked how sampler output is allocated in C. The 2.0.2 patch is a PROTECT fix for rchk warnings.

Read the full BAS trajectory →

What is metagroup?

A first release that turns meta-analytic heterogeneity into interpretable subgroups.

metagroup reached CRAN in late August with a complete first release: eight grouping functions covering binary, continuous, correlational, proportion, incidence and generic inverse-variance data, plus interpretation and plotting on top. The two releases since are CRAN review housekeeping. The package has shipped nothing but its launch.

Read the full metagroup trajectory →

BAS vs metagroup: editorial side-by-side

B
BAS
INFRA · APIS
0.0

A Bayesian model-averaging package spending its 2.0 on memory, not methods.

◆ Current state

BAS performs Bayesian variable selection and model averaging for linear and generalized linear models, sampling from a model space too large to enumerate. The visible history splits cleanly: 2023-2024 added sampling machinery — an adaptive independent MCMC sampler with Horvitz-Thompson estimation, hereditary-constraint counting — while 2.0.0 in late 2025 reworked how sampler output is allocated in C. The 2.0.2 patch is a PROTECT fix for rchk warnings.

◆ Where it's heading

Memory is the binding constraint and the releases say so directly. The hereditary-constraint counter, the GROW option, and the replacement of over-allocation with resizing all attack the same problem: n.models is a guess, and guessing high wastes memory on problems where few unique models are actually visited. The 2.0.0 work was additionally forced by R tightening its C API against non-API calls like SETLENGTH, a constraint every C-heavy CRAN package has been absorbing. Method development has been quiet since 1.7.x.

◆ Prediction

The 1.7.5 notes call the hereditary-constraint counting a first step and say future updates will cover other constraint types, including polynomials, which remain unhandled. That is the one concrete commitment in this history, though nothing since has returned to it.

M
metagroup
INFRA · APIS
0.0

A first release that turns meta-analytic heterogeneity into interpretable subgroups.

◆ Current state

metagroup reached CRAN in late August with a complete first release: eight grouping functions covering binary, continuous, correlational, proportion, incidence and generic inverse-variance data, plus interpretation and plotting on top. The two releases since are CRAN review housekeeping. The package has shipped nothing but its launch.

◆ Where it's heading

The design is a two-step pipeline, partitioning studies into homogeneous clusters and then characterising what those clusters have in common, which puts interpretation rather than detection at the centre. The follow-up releases suggest the author is still clearing the CRAN intake process rather than extending the method.

◆ Prediction

The next substantive release most likely broadens the interpretation side, since the grouping functions already cover the standard effect-size types.

Alternatives to BAS and metagroup

Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either BAS or metagroup.

See all BAS alternatives → · See all metagroup alternatives →

Recent activity from BAS and metagroup

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 8mo agoBASBAS 2.0.2
  2. 8mo agoBASBAS 2.0.0
  3. 11mo agometagroupCRAN review feedback: description and documentation polish
  4. 11mo agometagroupLICENSE file removed for CRAN submission
  5. 11mo agometagroupFirst release: homogeneity-based subgrouping for meta-analysis
  6. 1y agoBASBAS 1.7.5
  7. 1y agoBASBAS 1.7.3
  8. 1y agoBASBAS 1.7.2
  9. 2y agoBASBAS 1.7.1

Frequently asked questions

What is the difference between BAS and metagroup?

They serve adjacent needs but don't currently overlap on shipped themes. BAS and metagroup are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is BAS better than metagroup?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. BAS and metagroup are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.

What are the best alternatives to BAS?

Top BAS alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "BAS alternatives" section above for the current picks, or visit /alternatives/bas for the full list with editorial commentary on each.

What are the best alternatives to metagroup?

Top metagroup alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "metagroup alternatives" section above for the current picks, or visit /alternatives/metagroup for the full list with editorial commentary on each.