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b3gbi vs rmediation

A side-by-side editorial comparison of b3gbi and rmediation — release velocity, themes, recent moves, and the top alternatives to consider.

Shared themes:r package

b3gbi vs rmediation: at a glance

Featureb3gbirmediation
SectorAnalyticsAnalytics
Velocity score2.53.8
Sparks · 30d01
Top themesbiodiversity, gbif, uncertainty, bootstrappingmediation analysis, numerical integration, correctness, s7 classes
Last editorial update55m ago55m ago
WebsiteVisit →Visit →

What is b3gbi?

b3gbi pulled confidence intervals out of its indicator workflow and handed them to dubicube.

b3gbi computes biodiversity indicators from GBIF occurrence cubes for the B-Cubed project, and sits at 0.9.4 in a JOSS review run-up. The 0.9 release decoupled uncertainty from indicator calculation: confidence intervals are no longer produced inline but added afterward with add_ci(), backed by whole-cube bootstrapping from the sibling dubicube package. Everything since has been grid-parsing and compatibility repair around that split.

Read the full b3gbi trajectory →

What is rmediation?

RMediation shipped a three-normal CDF, then found it was silently wrong.

RMediation is a long-standing CRAN package for confidence intervals on mediated effects, now built on an S7 class hierarchy. Over eight weeks it added ProductNormal3 for serial indirect effects of the form a1*a2*b, folded the engine into the existing pprodnormal naming family, and then replaced that engine outright after finding it returned wrong probabilities without warning. The dev branch is at 1.7.0; CRAN still serves 1.6.1.

Read the full rmediation trajectory →

b3gbi vs rmediation: editorial side-by-side

B
b3gbi
ANALYTICS
2.5

b3gbi pulled confidence intervals out of its indicator workflow and handed them to dubicube.

◆ Current state

b3gbi computes biodiversity indicators from GBIF occurrence cubes for the B-Cubed project, and sits at 0.9.4 in a JOSS review run-up. The 0.9 release decoupled uncertainty from indicator calculation: confidence intervals are no longer produced inline but added afterward with add_ci(), backed by whole-cube bootstrapping from the sibling dubicube package. Everything since has been grid-parsing and compatibility repair around that split.

◆ Where it's heading

Two forces are shaping releases. Internally, the uncertainty split produced an indicator-specific rule book — species-level indicators bootstrap the whole cube, raw counts resample within year, evenness gets a logit transform — and that rule book is where the statistical thinking now lives. Externally, GBIF's taxonomic backbone migration to the Catalogue of Life forced string taxon keys through process_cube() and the plotting paths, while recurring EEA and MGRS grid-code fixes mark coordinate parsing as the least settled area.

◆ Prediction

The 0.9.4 notes are entirely JOSS review items — contributors, examples, tracked datasets — so the next release is most likely a JOSS-accepted 1.0 rather than new indicator work.

R
rmediation
ANALYTICS
3.8

RMediation shipped a three-normal CDF, then found it was silently wrong.

◆ Current state

RMediation is a long-standing CRAN package for confidence intervals on mediated effects, now built on an S7 class hierarchy. Over eight weeks it added ProductNormal3 for serial indirect effects of the form a1*a2*b, folded the engine into the existing pprodnormal naming family, and then replaced that engine outright after finding it returned wrong probabilities without warning. The dev branch is at 1.7.0; CRAN still serves 1.6.1.

◆ Where it's heading

The package is moving from a hand-rolled numerical layer to one that checks itself: the new default integrator escalates its node count until successive rules agree, warns when it hits the cap instead of returning a number, and exposes a diagnostics argument for the convergence estimate. The correctness fix went to dev ahead of the CRAN window rather than being held for it, which suggests wrong-answer bugs are treated as release-blocking regardless of cadence. Serial mediation is where the new surface area is concentrated.

◆ Prediction

1.7.0 exists specifically to land before CRAN's 2026-08-21 update window, so the next move is a CRAN submission promoting it to main; whether hcubature survives past that as a cross-check option is the open question.

Alternatives to b3gbi and rmediation

Other Analytics 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 b3gbi or rmediation.

See all b3gbi alternatives → · See all rmediation alternatives →

Recent activity from b3gbi and rmediation

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

  1. 8h agormediationv1.7.0 — pprodnormal3() correctness fix
  2. 4d agob3gbiJOSS review fixes: contributors, examples, tracked data
  3. 1mo agob3gbiEEA grid coordinates no longer scaled by resolution
  4. 1mo agormediationp_prod3() renamed into the pprodnormal family
  5. 1mo agormediationProductNormal3: exact CDF for a product of three normals
  6. 1mo agob3gbiadd_ci() no longer crashes on completeness indicators
  7. 1mo agob3gbiString taxon keys for GBIF's Catalogue of Life backbone
  8. 1mo agob3gbiUncertainty split out of the indicator workflow into add_ci()
  9. 1mo agob3gbiFAIR column mapping doc and Zenodo DOI badge
  10. 1mo agormediationmedfit reaches CRAN; Remotes pointer dropped

Frequently asked questions

What is the difference between b3gbi and rmediation?

Both compete on the same themes — r package — within Analytics. rmediation is currently shipping more aggressively (velocity 3.8 vs 2.5), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is b3gbi better than rmediation?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. rmediation is currently shipping more aggressively (velocity 3.8 vs 2.5), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.

What are the best alternatives to b3gbi?

Top b3gbi alternatives in Analytics are ranked by recent ship velocity. Browse the "b3gbi alternatives" section above for the current picks, or visit /alternatives/b3gbi for the full list with editorial commentary on each.

What are the best alternatives to rmediation?

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