datefixR
The messy-date parser rewrote its core in Rust and came out 300x faster.
Comparison · Analytics
CRediTas vs fellingdater
A side-by-side editorial comparison of CRediTas and fellingdater — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:ropenscir-package
CRediTas vs fellingdater: at a glance
What is CRediTas?
A CRediT author-statement generator that renamed itself, then went quiet for two years.
CRediTas turns a contributor-roles table into a CRediT Author Statement for a paper. The 0.2.0 release in April 2023 did the heavy lifting — package rename, a full object_verb() API rename, and output that drops straight into R Markdown or Quarto. The 0.3.0 release in August 2025 is the only activity since and carries no changelog text beyond a pointer to NEWS.md.
What is fellingdater?
Went from estimating felling dates to doing the crossdating that produces them.
fellingdater estimates when a tree was felled from sapwood measurements, the core inference in dendrochronological dating of timber. Version 1.0.0 passed rOpenSci review with that scope, and the 2024 releases were mostly about the accompanying JOSS paper and user-supplied sapwood datasets. Version 1.2.0 changed the package's remit substantially, adding an entire trs_* family for tree-ring series handling: crossdating with multiple statistical measures, the Hollstein and Baillie-Pilcher t-value transformations, parallel variation percentages, synthetic series generation, and dated-series plotting.
CRediTas vs fellingdater: editorial side-by-side
CRediTas
0.0ANALYTICS
A CRediT author-statement generator that renamed itself, then went quiet for two years.
◆ Current state
CRediTas turns a contributor-roles table into a CRediT Author Statement for a paper. The 0.2.0 release in April 2023 did the heavy lifting — package rename, a full object_verb() API rename, and output that drops straight into R Markdown or Quarto. The 0.3.0 release in August 2025 is the only activity since and carries no changelog text beyond a pointer to NEWS.md.
◆ Where it's heading
Development front-loaded a breaking cleanup during rOpenSci review and has coasted since. The design bet made in 0.2.0 — return a string for inline use rather than write a file — pointed the package at literate authoring workflows rather than at standalone scripts, and nothing since has moved away from it. The empty 0.3.0 note makes the current direction impossible to read from the feed.
◆ Prediction
Too little is published to call the next move; the 0.3.0 entry would need to carry its actual changes for the trajectory to be readable from the changelog at all.
fellingdater
0.0ANALYTICS
Went from estimating felling dates to doing the crossdating that produces them.
◆ Current state
fellingdater estimates when a tree was felled from sapwood measurements, the core inference in dendrochronological dating of timber. Version 1.0.0 passed rOpenSci review with that scope, and the 2024 releases were mostly about the accompanying JOSS paper and user-supplied sapwood datasets. Version 1.2.0 changed the package's remit substantially, adding an entire trs_* family for tree-ring series handling: crossdating with multiple statistical measures, the Hollstein and Baillie-Pilcher t-value transformations, parallel variation percentages, synthetic series generation, and dated-series plotting.
◆ Where it's heading
The package has expanded backwards along the workflow. It began at the last step — given dated series, estimate the felling date — and 1.2.0 added the step before it, establishing those dates by crossdating in the first place. Version 1.2.1 is early polish on that new surface: axis control, non-syntactic column names, encoding safety in read_fh(). The direction is a single package covering the chain from raw ring widths to a felling-date estimate.
◆ Prediction
Expect the trs_* family to keep accumulating polish and additional crossdating statistics, since it is barely a year old and 1.2.1 was already fixing its plotting and top_n behaviour. Whether the two halves of the package get unified into one workflow interface is the open question the entries do not answer.
Alternatives to CRediTas and fellingdater
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 CRediTas or fellingdater.
maplegend
The legend engine mapsf spun out, now covering legend types the parent map package can draw.
lang
R help pages translated on demand by whichever LLM you point it at.
mapsf
Thematic mapping in base R that finally got a theming system, then spent two years polishing legends.
qualtRics
qualtRics moved its contact functions onto XM Directory days before the old endpoints died.
fabletools
The tidyverts forecasting core rebuilt model combination on full residual covariance.
See all CRediTas alternatives → · See all fellingdater alternatives →
Recent activity from CRediTas and fellingdater
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 4mo agofellingdaterPolish for the crossdating plots and file reader
- 11mo agoCRediTasVersion 0.3.0
- 1y agofellingdaterAdds a full crossdating and tree-ring analysis toolkit ⚡
- 1y agofellingdaterUser-supplied sapwood data works across all functions
- 1y agofellingdaterFixes fd_report() with user-defined sapwood files
- 2y agofellingdaterJOSS paper accepted; citation updated
- 2y agofellingdaterAdds a workflow vignette ahead of JOSS submission
- 3y agoCRediTasZenodo release (version 0.2.0)
- 3y agoCRediTasPackage and every function renamed; output goes inline ⚡
Frequently asked questions
What is the difference between CRediTas and fellingdater?
Both compete on the same themes — ropensci, r-package — within Analytics. CRediTas and fellingdater 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 CRediTas better than fellingdater?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. CRediTas and fellingdater 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 CRediTas?
Top CRediTas alternatives in Analytics are ranked by recent ship velocity. Browse the "CRediTas alternatives" section above for the current picks, or visit /alternatives/creditas for the full list with editorial commentary on each.
What are the best alternatives to fellingdater?
Top fellingdater alternatives in Analytics are ranked by recent ship velocity. Browse the "fellingdater alternatives" section above for the current picks, or visit /alternatives/fellingdater for the full list with editorial commentary on each.