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constants vs vellumverse

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

constants vs vellumverse: at a glance

Featureconstantsvellumverse
SectorAnalyticsAnalytics
Velocity score0.05.0
Sparks · 30d00
Top themesphysical-constants, codata, units, uncertainty-propagationr-graphics, meta-package, dependency-management, ecosystem
Last editorial update14h ago56m ago
WebsiteVisit →Visit →

What is constants?

The R package for CODATA constants rebuilt its symbol table on NIST's naming so future updates stop being hand work.

constants exposes the CODATA recommended values of the physical constants to R, as a data frame plus symbol lists that carry units, uncertainties, or both. The package reached 1.0.0 on the 2018 CODATA release and has shipped once since, purely to track a units package update. Its surface is small and its release cadence is bound to CODATA, which revises every few years.

Read the full constants trajectory →

What is vellumverse?

A meta-package whose entire changelog is a version pin, tracking an ecosystem moving faster than it is.

vellumverse attaches the vellum graphics ecosystem in one library() call, reports which versions loaded, lists the bundled packages and surfaces functions masked across them. It is deliberately dependency-light, having dropped rlang and declared only what the conflict reporter actually uses. Since 0.2.0 every release has been a version pin bump rather than new behaviour of its own.

Read the full vellumverse trajectory →

constants vs vellumverse: editorial side-by-side

C
constants
ANALYTICS
0.0

The R package for CODATA constants rebuilt its symbol table on NIST's naming so future updates stop being hand work.

◆ Current state

constants exposes the CODATA recommended values of the physical constants to R, as a data frame plus symbol lists that carry units, uncertainties, or both. The package reached 1.0.0 on the 2018 CODATA release and has shipped once since, purely to track a units package update. Its surface is small and its release cadence is bound to CODATA, which revises every few years.

◆ Where it's heading

The direction set at 1.0.0 was to stop being a curated convenience wrapper and become a mechanical mirror of NIST. Hand-crafted symbol names were replaced with NIST's own ASCII symbols, categories adopted NIST's, and uncertainty switched from relative to absolute — all framed by the maintainer as necessary to make future CODATA updates routine. On top of that the package gained a correlation matrix and optional integration with the quantities package, moving it from a lookup table toward something that can propagate uncertainty.

◆ Prediction

Having rebuilt the symbol table specifically so CODATA revisions become mechanical, the next substantive release most likely tracks a new CODATA dataset rather than adding API. The experimental correlated-value support, disabled by default at 1.0.0, is the one part these entries flag as unfinished.

V
vellumverse
ANALYTICS
5.0

A meta-package whose entire changelog is a version pin, tracking an ecosystem moving faster than it is.

◆ Current state

vellumverse attaches the vellum graphics ecosystem in one library() call, reports which versions loaded, lists the bundled packages and surfaces functions masked across them. It is deliberately dependency-light, having dropped rlang and declared only what the conflict reporter actually uses. Since 0.2.0 every release has been a version pin bump rather than new behaviour of its own.

◆ Where it's heading

The release record is an index of other packages' work: four of the last six entries do nothing but raise the floor on vellum, vellumplot and vellumwidget. The cadence tells the real story, with pins moving roughly weekly and each bump chasing a minor release somewhere downstream, so the meta-package is currently a distribution convenience rather than a component. The one genuinely structural release in the window was 0.2.1, which trimmed the dependency surface to keep an attach-only package cheap to install.

◆ Prediction

Expect the pin bumps to keep pace with the ecosystem's weekly releases rather than any feature of its own, and the pin on vellumplot to move again as the interaction grammar the widget now depends on continues to land. Whether vellumverse ever grows beyond attach-and-report is not visible in these entries.

Alternatives to constants and vellumverse

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 constants or vellumverse.

See all constants alternatives → · See all vellumverse alternatives →

Recent activity from constants and vellumverse

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

  1. 14d agovellumversePins raised to vellum 0.6.6, vellumplot 0.9.0, vellumwidget 0.8.0
  2. 20d agovellumversePins raised to vellumplot 0.8.0 and vellumwidget 0.7.0
  3. 27d agovellumversePins raised to vellum 0.5.0, vellumplot 0.6.0, vellumwidget 0.6.0
  4. 1mo agovellumversePins raised to vellum 0.4.0, vellumplot 0.5.0, vellumwidget 0.5.0
  5. 1mo agovellumverseDependency surface trimmed to keep the meta-package light
  6. 1mo agovellumverseAdopts vellum's renamed vl_* graphics primitives
  7. 5y agoconstantsCompatibility fix for units 0.7-0
  8. 5y agoconstantsconstants 1.0.0
  9. 8y agoconstantsUnit handling fixes ahead of the 1.0.0 rebuild

Frequently asked questions

What is the difference between constants and vellumverse?

They serve adjacent needs but don't currently overlap on shipped themes. vellumverse is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 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 constants better than vellumverse?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. vellumverse is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 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 constants?

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

What are the best alternatives to vellumverse?

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