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Comparison · Analytics
dvir vs timbr
A side-by-side editorial comparison of dvir and timbr — release velocity, themes, recent moves, and the top alternatives to consider.
dvir vs timbr: at a glance
What is dvir?
dvir keeps making disaster victim identification a single call instead of a workflow.
dvir handles disaster victim identification: matching unidentified remains against reference families using pedigree likelihoods. The package has consolidated around dviSolve(), a complete pipeline introduced in 3.2.1 and rewritten in 3.3.0 to use generalised likelihood ratios for families with several missing persons. Recent releases have been about making that pipeline survive large cases, adding dviGridSize() and a maxAssign cutoff to skip joint analysis when the combination count explodes, plus per-step timings.
What is timbr?
Three years dormant, timbr returns with dplyr verbs that finally respect tree structure
timbr provides a 'forest' class for nested tree data in R, letting users navigate parent/child relationships with tidyverse-style verbs. After its last release in May 2023, the package sat untouched for over three years before 0.3.0 landed in July 2026. That release is dominated by correctness work on the structural invariants that everything else depends on.
dvir vs timbr: editorial side-by-side
dvir
0.0ANALYTICS
dvir keeps making disaster victim identification a single call instead of a workflow.
◆ Current state
dvir handles disaster victim identification: matching unidentified remains against reference families using pedigree likelihoods. The package has consolidated around dviSolve(), a complete pipeline introduced in 3.2.1 and rewritten in 3.3.0 to use generalised likelihood ratios for families with several missing persons. Recent releases have been about making that pipeline survive large cases, adding dviGridSize() and a maxAssign cutoff to skip joint analysis when the combination count explodes, plus per-step timings.
◆ Where it's heading
The arc is from a toolbox of functions toward one supervised pipeline, with the older jointDVI() now emitting a legacy message. The current constraint is combinatorial: joint analysis over many victims and missing persons blows up, so the work has gone to measuring the blowup and bailing out of it. Parallelism is mid-migration, with the parallel and pbapply implementation removed and a mirai replacement stated as planned but not yet shipped, leaving numCores accepted and ignored with a warning.
◆ Prediction
The mirai-based parallelisation is announced as coming, so expect it next, most likely applied to the joint analysis step that maxAssign currently exists to avoid.
timbr
0.0ANALYTICS
Three years dormant, timbr returns with dplyr verbs that finally respect tree structure
◆ Current state
timbr provides a 'forest' class for nested tree data in R, letting users navigate parent/child relationships with tidyverse-style verbs. After its last release in May 2023, the package sat untouched for over three years before 0.3.0 landed in July 2026. That release is dominated by correctness work on the structural invariants that everything else depends on.
◆ Where it's heading
The arc is from a working prototype toward a class that behaves correctly under the full dplyr surface. 0.3.0 implements relocate(), rows_patch() and rows_update() for forests and makes select() always preserve the internal node column, closing the gaps where a standard verb would silently break the tree. The deprecation of map_forest() in favour of traverse(), begun in 0.2.2, is now complete.
◆ Prediction
With the verb coverage gaps closed and the long deprecation cycle finished, the next release is likely to extend dplyr method coverage further rather than change the forest model. The entries do not indicate what prompted the three-year gap, so the sustainability of this cadence is unclear.
Alternatives to dvir and timbr
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 dvir or timbr.
spsurvey
spsurvey has spent four years consolidating after its 5.0.0 rewrite rather than adding to it
StreamCatTools
StreamCatTools is quietly moving off web services and onto cloud-native GeoParquet
reproducible
reproducible added a windowed read path so remote GeoTiffs never fully download
qcTAF
qcTAF is building an automated checklist for reproducible fisheries assessments, one criterion at a time
rpymat
After three dormant years, rpymat returned to fix the OpenMP crash that breaks R and conda together
Recent activity from dvir and timbr
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1mo agotimbrForests gain relocate/rows_patch/rows_update; map_forest now defunct
- 1mo agodvirCombination sizing and a cutoff for joint analysis
- 3mo agodvirJoint tables added to solver output
- 3mo agodvirVictim and database accessors, plus solver refinements
- 1y agodvirSolver rewritten around generalised likelihood ratios
- 2y agodvirdviSolve() pipeline and manual pairing controls
- 2y agodvirMaintainer handover and small reporting additions
- 3y agotimbrmap_forest() renamed to traverse() and deprecated
- 3y agotimbrArgument rename in rowwise.forest() and CRAN check fixes
- 3y agotimbrForest headers now print the tree structure
Frequently asked questions
What is the difference between dvir and timbr?
They serve adjacent needs but don't currently overlap on shipped themes. dvir and timbr 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 dvir better than timbr?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. dvir and timbr 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 dvir?
Top dvir alternatives in Analytics are ranked by recent ship velocity. Browse the "dvir alternatives" section above for the current picks, or visit /alternatives/dvir for the full list with editorial commentary on each.
What are the best alternatives to timbr?
Top timbr alternatives in Analytics are ranked by recent ship velocity. Browse the "timbr alternatives" section above for the current picks, or visit /alternatives/timbr for the full list with editorial commentary on each.