datefixR
The messy-date parser rewrote its core in Rust and came out 300x faster.
Comparison · Analytics
admiralvaccine vs fellingdater
A side-by-side editorial comparison of admiralvaccine and fellingdater — release velocity, themes, recent moves, and the top alternatives to consider.
admiralvaccine vs fellingdater: at a glance
What is admiralvaccine?
Vaccine ADaM templates exist and are maintained, but development has slowed to housekeeping.
admiralvaccine provides vaccine-specific ADaM templates and vignettes — ADCE, ADFACE, ADIS, ADSL — on top of admiral. The last two releases contain no functional change at all: 0.5.0 is maintainer handover, template fixes and lint config, and 0.6.0 is CRAN documentation compliance plus an ecosystem-wide Ask AI widget. Real work was last visible in 0.4.0's criterion-flag deprecation.
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.
admiralvaccine vs fellingdater: editorial side-by-side
admiralvaccine
0.0ANALYTICS
Vaccine ADaM templates exist and are maintained, but development has slowed to housekeeping.
◆ Current state
admiralvaccine provides vaccine-specific ADaM templates and vignettes — ADCE, ADFACE, ADIS, ADSL — on top of admiral. The last two releases contain no functional change at all: 0.5.0 is maintainer handover, template fixes and lint config, and 0.6.0 is CRAN documentation compliance plus an ecosystem-wide Ask AI widget. Real work was last visible in 0.4.0's criterion-flag deprecation.
◆ Where it's heading
The package has moved from building out vaccine domains to keeping them on CRAN. Each release tracks whatever admiral changed upstream and clears whatever CRAN flagged, and the changelogs have shifted from derivation notes to merged-PR lists. Maintainer churn in 0.5.0 is the clearest sign that this is a maintenance-mode package inside an otherwise active ecosystem.
◆ Prediction
The next release most likely continues the pattern — dependency and documentation alignment with admiral core plus deprecation follow-through — unless a new vaccine reporting requirement forces domain work.
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 admiralvaccine 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 admiralvaccine or fellingdater.
maplegend
The legend engine mapsf spun out, now covering legend types the parent map package can draw.
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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 admiralvaccine alternatives → · See all fellingdater alternatives →
Recent activity from admiralvaccine and fellingdater
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 4mo agofellingdaterPolish for the crossdating plots and file reader
- 6mo agoadmiralvaccineDocs-only release: CRAN reference fixes and Ask AI widget
- 10mo agoadmiralvaccineMaintainer handover, ADIS template fix and lint cleanup
- 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
- 1y agoadmiralvaccineCriterion-flag derivation superseded by admiral core
- 1y agoadmiralvaccineDependencies trimmed; templates aligned to CBER guidelines
- 2y agofellingdaterJOSS paper accepted; citation updated
- 2y agofellingdaterAdds a workflow vignette ahead of JOSS submission
- 2y agoadmiralvaccineTemplates track admiral API changes; test data moves to pharmaversesdtm
- 3y agoadmiralvaccineFirst release brings vaccine ADaM domains to pharmaverse ⚡
Frequently asked questions
What is the difference between admiralvaccine and fellingdater?
They serve adjacent needs but don't currently overlap on shipped themes. admiralvaccine 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 admiralvaccine better than fellingdater?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. admiralvaccine 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 admiralvaccine?
Top admiralvaccine alternatives in Analytics are ranked by recent ship velocity. Browse the "admiralvaccine alternatives" section above for the current picks, or visit /alternatives/admiralvaccine 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.