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Comparison · Infra & APIs

crandep vs robscale

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

Shared themes:cran

crandep vs robscale: at a glance

Featurecrandeprobscale
SectorInfra & APIsInfra & APIs
Velocity score0.00.0
Sparks · 30d00
Top themescran, dependency-network, power-law, mcmcrobust-statistics, simd, performance, cran
Last editorial update1h ago1d ago
WebsiteVisit →Visit →

What is crandep?

Half CRAN dependency scraper, half extreme-value modelling kit — and the scraper half keeps finding bugs.

crandep does two jobs that rarely share a package: it harvests the CRAN dependency network, and it fits power-law and extreme-value mixture models to the resulting degree distributions. The 2024 releases were all model work — profile posteriors, wrappers, a constrained variant, a TZP-power-law mixture between the two- and three-component models. The 2025 releases are entirely the other half, fixing what the harvester was silently getting wrong.

Read the full crandep trajectory →

What is robscale?

A robust-statistics package rewrote its estimators in SIMD C++ and went to CRAN in two weeks.

robscale computes robust scale and location estimators, and its pitch is speed: 21 to 26 times faster than stats::mad, 37 times faster than stats::IQR on small samples, with comparable margins over robustbase for Qn and Sn. The March 2026 releases took it from a GitHub project to a CRAN package carrying eleven estimators, all with confidence intervals.

Read the full robscale trajectory →

crandep vs robscale: editorial side-by-side

C
crandep
INFRA · APIS
0.0

Half CRAN dependency scraper, half extreme-value modelling kit — and the scraper half keeps finding bugs.

◆ Current state

crandep does two jobs that rarely share a package: it harvests the CRAN dependency network, and it fits power-law and extreme-value mixture models to the resulting degree distributions. The 2024 releases were all model work — profile posteriors, wrappers, a constrained variant, a TZP-power-law mixture between the two- and three-component models. The 2025 releases are entirely the other half, fixing what the harvester was silently getting wrong.

◆ Where it's heading

The modelling side has settled into a family of mixtures with matching wrapper and profile-posterior functions, and has not gained a new component since mid-2024. Attention has shifted to data quality in the scraper, where two consecutive releases dealt with the same class of problem: rows that should not exist because of trailing commas in CRAN's own metadata, and rows that should exist but did not because orphan packages have no edges. For a package whose science is degree distributions, missing isolated nodes is a modelling error, not a formatting one.

◆ Prediction

Expect further hardening against CRAN metadata quirks in the harvesting functions; the mixture-model side looks feature-complete and is likely to stay quiet unless a new component model is published.

R
robscale
INFRA · APIS
0.0

A robust-statistics package rewrote its estimators in SIMD C++ and went to CRAN in two weeks.

◆ Current state

robscale computes robust scale and location estimators, and its pitch is speed: 21 to 26 times faster than stats::mad, 37 times faster than stats::IQR on small samples, with comparable margins over robustbase for Qn and Sn. The March 2026 releases took it from a GitHub project to a CRAN package carrying eleven estimators, all with confidence intervals.

◆ Where it's heading

Three releases in a fortnight walk a clear line: expand the public API, submit to CRAN, then tune. The 0.5.4 work is where that tuning shows, and it is unusually specific about hardware, raising sorting-network thresholds after benchmarking and dropping the AVX-512 path entirely in favour of a shorter AVX2-first dispatch chain. The build-fix lists are long, which is what a package fighting compiler and TBB variation across CRAN's platforms looks like.

◆ Prediction

The dispatch hierarchy has been simplified once already; further releases most likely continue narrowing the SIMD surface and hardening the configure step rather than adding estimators. A new estimator would be the surprise.

Alternatives to crandep and robscale

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 crandep or robscale.

See all crandep alternatives → · See all robscale alternatives →

Recent activity from crandep and robscale

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

  1. 4mo agorobscaleSIMD median networks land; AVX-512 dispatch is dropped
  2. 4mo agorobscaleCRAN submission ships 11 robust estimators with bootstrap intervals
  3. 5mo agorobscalescale_robust() dispatcher and four new estimators join the public API
  4. 1y agocrandepDependency harvest split in two so orphan packages stop disappearing
  5. 1y agocrandepTrailing commas in CRAN metadata no longer produce empty-name rows
  6. 2y agocrandepConstrained two-component mixture with continuity at the threshold
  7. 2y agocrandepArgument names normalised to x_max; MCMC wrapper defaults set
  8. 2y agocrandepTZP-power-law mixture fills the gap between the 2- and 3-component models
  9. 2y agocrandepProfile posteriors and chained MCMC wrappers for the mixture models

Frequently asked questions

What is the difference between crandep and robscale?

Both compete on the same themes — cran — within Infra & APIs. crandep and robscale 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 crandep better than robscale?

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

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

What are the best alternatives to robscale?

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