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trias vs units

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

trias vs units: at a glance

Featuretriasunits
SectorAnalyticsAnalytics
Velocity score0.00.0
Sparks · 30d00
Top themesinvasive-species, biodiversity, gbif, indicatorsmeasurement units, r package, udunits2, breaking parser change
Last editorial update1h ago3h ago
WebsiteVisit →Visit →

What is trias?

Belgium's invasive-species indicator toolkit is in steady refinement, one plotting edge case at a time.

trias computes and visualizes indicators for the Belgian Tracking Invasive Alien Species project — emergence detection via GAMs, introduction pathway breakdowns following CBD categories, and native range trends. The recent releases are narrow: GAM plots can now be produced without textual annotation when the model cannot be fitted, and apply_decision_rules() no longer supplies a default for a required argument.

Read the full trias trajectory →

What is units?

units reaches 1.0 by rewriting its parser and accepting the breakage that comes with it.

units attaches physical units to R vectors on top of the udunits2 library, covering arithmetic, conversion and ggplot2 scales. Version 1.0-0 replaced the unit-expression tokenizer so numbers are consistently treated as prefixes, and expressions like ml/min/1.73m^2 now parse the way physiologists write them. Printing follows NIST conventions, and 1.0-1 is a fix pass over memory handling and parser edge cases.

Read the full units trajectory →

trias vs units: editorial side-by-side

T
trias
ANALYTICS
0.0

Belgium's invasive-species indicator toolkit is in steady refinement, one plotting edge case at a time.

◆ Current state

trias computes and visualizes indicators for the Belgian Tracking Invasive Alien Species project — emergence detection via GAMs, introduction pathway breakdowns following CBD categories, and native range trends. The recent releases are narrow: GAM plots can now be produced without textual annotation when the model cannot be fitted, and apply_decision_rules() no longer supplies a default for a required argument.

◆ Where it's heading

Development runs in small, fast patches concentrated on making the indicator functions survive imperfect real-world input — pathways absent from the data, GAMs that will not converge, checklist files with unexpected columns. A second thread trims the package's own surface in favor of the data it ships, deprecating pathways_cbd() in favor of using the pathwayscbd data frame directly, while get_nubkeys() extends reach into GBIF Backbone taxon key resolution.

◆ Prediction

Expect continued patch-level hardening of the visualization functions and further reliance on GBIF services for taxon resolution, with no sign of a structural change to the indicator set.

U
units
ANALYTICS
0.0

units reaches 1.0 by rewriting its parser and accepting the breakage that comes with it.

◆ Current state

units attaches physical units to R vectors on top of the udunits2 library, covering arithmetic, conversion and ggplot2 scales. Version 1.0-0 replaced the unit-expression tokenizer so numbers are consistently treated as prefixes, and expressions like ml/min/1.73m^2 now parse the way physiologists write them. Printing follows NIST conventions, and 1.0-1 is a fix pass over memory handling and parser edge cases.

◆ Where it's heading

The long 0.8-x run was accretion — ggplot2 scales absorbed from ggforce, ud_convert(), matrix methods, steady performance work — while known parsing defects stayed in place. The 1.0 release finally traded backwards compatibility for correct parsing, and 1.0-1's pointer-wrapping and exception-propagation work suggests the C++ glue is being hardened behind it. Fixes cluster at the udunits2 boundary, which remains the main source of surprises.

◆ Prediction

Expect continued patch releases against udunits2 quirks and the new tokenizer's fallout rather than new surface area, with the ggplot2 integration and conversion helpers already in place.

Alternatives to trias and units

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 trias or units.

See all trias alternatives → · See all units alternatives →

Recent activity from trias and units

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

  1. 3mo agotriasGAM plots survive models that cannot be fitted
  2. 5mo agounitsMemory-leak and udunits2 parsing fixes after 1.0
  3. 5mo agotriasColumn validation added to the download list update
  4. 6mo agotriasY-axis tick values corrected in pathway plots
  5. 6mo agotriasZenodo integration patch removes the DOI badge
  6. 6mo agotriasget_nubkeys() resolves GBIF Backbone taxon keys
  7. 6mo agotriaspathways_cbd() deprecated in favor of its data frame
  8. 10mo agounitsNew tokenizer parses compound units correctly
  9. 1y agounitsCopy semantics fix in ud_convert(); C++17 for old R
  10. 1y agounitscbind/rbind methods, ud_convert() and broad fixes
  11. 1y agounitsSilences a CRAN compiler warning
  12. 2y agounitsRestores simplify=FALSE for identical units

Frequently asked questions

What is the difference between trias and units?

They serve adjacent needs but don't currently overlap on shipped themes. trias and units 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 trias better than units?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. trias and units 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 Analytics products to evaluate alongside.

What are the best alternatives to trias?

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

What are the best alternatives to units?

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