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Comparison · Infra & APIs

BAS vs vcmeta

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

BAS vs vcmeta: at a glance

FeatureBASvcmeta
SectorInfra & APIsInfra & APIs
Velocity score0.00.0
Sparks · 30d00
Top themesbayesian-statistics, model-averaging, mcmc, r-packagemeta-analysis, confidence-intervals, breaking-changes, api-naming
Last editorial update1h ago52m 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 vcmeta?

A meta-analysis toolkit still renaming its own API as it adds effect sizes.

vcmeta provides confidence-interval methods for meta-analysis across correlations, proportions, odds ratios, standardized mean differences and reliability, plus replication-study counterparts to most of them. Each release both widens the function inventory and reshuffles it. The most recent one adds agreement and generalised log-average functions while deleting one function and renaming six others.

Read the full vcmeta trajectory →

BAS vs vcmeta: 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.

V
vcmeta
INFRA · APIS
0.0

A meta-analysis toolkit still renaming its own API as it adds effect sizes.

◆ Current state

vcmeta provides confidence-interval methods for meta-analysis across correlations, proportions, odds ratios, standardized mean differences and reliability, plus replication-study counterparts to most of them. Each release both widens the function inventory and reshuffles it. The most recent one adds agreement and generalised log-average functions while deleting one function and renaming six others.

◆ Where it's heading

The package is converging on a naming scheme, with odds becoming oddsratio and ratio.prop2 becoming propratio2, and it is willing to break calling code to get there. Two of the last three releases carry a self-declared breaking parameter change, both cases where an assumption that used to be baked in became something the user must supply. Growth in the function set is steady rather than directional.

◆ Prediction

Expect the renaming pass to continue into the remaining inconsistent names, alongside more replication-study counterparts to existing estimators.

Alternatives to BAS and vcmeta

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 vcmeta.

See all BAS alternatives → · See all vcmeta alternatives →

Recent activity from BAS and vcmeta

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

  1. 8mo agoBASBAS 2.0.2
  2. 8mo agoBASBAS 2.0.0
  3. 11mo agovcmetaAgreement functions added; six renames and a breaking parameter
  4. 1y agoBASBAS 1.7.5
  5. 1y agoBASBAS 1.7.3
  6. 1y agoBASBAS 1.7.2
  7. 2y agovcmetaEqual-variance assumption dropped from standardized mean diff
  8. 2y agoBASBAS 1.7.1
  9. 4y agovcmetaHomogeneity test, average-variance interval, replication tools

Frequently asked questions

What is the difference between BAS and vcmeta?

They serve adjacent needs but don't currently overlap on shipped themes. BAS and vcmeta 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 vcmeta?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. BAS and vcmeta 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 vcmeta?

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