qqman
The Manhattan-plot package for GWAS results, finished and dormant since 2017.
Comparison · Analytics
ArchR vs fossilsim
A side-by-side editorial comparison of ArchR and fossilsim — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:r-package
ArchR vs fossilsim: at a glance
What is ArchR?
ArchR returns after three years, mostly to catch up with the ecosystem around it.
ArchR analyses single-cell chromatin accessibility data, and until early 2025 its last release was from 2022. Release 1.0.3 collects roughly three years of accumulated pull requests: ggplot2 3.5 compatibility, Seurat v5 object creation, large-matrix handling via ARMA_64BIT_WORD, trajectory and module-score work, and a published Docker image. The release candidate before it did nothing but lift a 500 MB import ceiling.
What is fossilsim?
A fossil-record simulator that quietly grew a trait-evolution engine.
FossilSim is a mature R package for simulating fossil records on phylogenetic trees, and its release cadence reflects that: long gaps punctuated by a single capability addition. The last four releases span three years, with the most recent being a compatibility sync to its companion Shiny front-end rather than new functionality. The core simulation surface has been stable since 2022.
ArchR vs fossilsim: editorial side-by-side
ArchR
0.0ANALYTICS
ArchR returns after three years, mostly to catch up with the ecosystem around it.
◆ Current state
ArchR analyses single-cell chromatin accessibility data, and until early 2025 its last release was from 2022. Release 1.0.3 collects roughly three years of accumulated pull requests: ggplot2 3.5 compatibility, Seurat v5 object creation, large-matrix handling via ARMA_64BIT_WORD, trajectory and module-score work, and a published Docker image. The release candidate before it did nothing but lift a 500 MB import ceiling.
◆ Where it's heading
This is a maintenance restart rather than a new direction. The contributor list shifts visibly from the original authors toward newer maintainers handling compatibility work, and the Docker image suggests an acknowledgement that reproducing the environment had become the harder problem. Whether the cadence recovers is not something these entries answer.
◆ Prediction
The entries do not support a confident call on future direction; the immediate question is whether releases resume at a normal interval or 1.0.3 was a one-off catch-up.
fossilsim
0.0ANALYTICS
A fossil-record simulator that quietly grew a trait-evolution engine.
◆ Current state
FossilSim is a mature R package for simulating fossil records on phylogenetic trees, and its release cadence reflects that: long gaps punctuated by a single capability addition. The last four releases span three years, with the most recent being a compatibility sync to its companion Shiny front-end rather than new functionality. The core simulation surface has been stable since 2022.
◆ Where it's heading
The arc runs from sampling mechanics toward simulating what the organisms actually were. Version 2.2.0 taught the package to handle occurrence data for occurrence birth-death models; 2.3.0 then added trait simulation under Mk, BM and OU, which is a different kind of output than fossil ages. Since then the work has been maintenance and keeping the FossilSimShiny GUI in step, suggesting the authors consider the current model set feature-complete.
◆ Prediction
The pairing of the 2.3.3 release with a FossilSimShiny version bump points to the GUI, not the library, as where the next visible work lands. The entries do not show enough activity to predict a specific new model family.
Alternatives to ArchR and fossilsim
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 ArchR or fossilsim.
constants
The R package for CODATA constants rebuilt its symbol table on NIST's naming so future updates stop being hand work.
austraits
The R client for AusTraits spends its releases chasing the dataset it reads.
ggdemetra
A ggplot2 layer for seasonal adjustment output, filling in one plot type at a time.
tern.rbmi
Reference-based multiple imputation tables, shipping only what CRAN checks demand.
tern.mmrm
An MMRM tabulation package that has published nothing since its 2024 CRAN releases.
See all ArchR alternatives → · See all fossilsim alternatives →
Recent activity from ArchR and fossilsim
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1y agoArchRThree years of fixes, Seurat v5 support and a Docker image
- 1y agoArchRRelease candidate lifting the 500 MB S4 import limit
- 2y agofossilsimCompatibility bump for FossilSimShiny 1.1.2
- 4y agofossilsimBug fixes and documentation cleanup
- 4y agoArchRStability fixes and improved multiome import
- 4y agofossilsimTrait simulation arrives: Mk, BM and OU models ⚡
- 5y agofossilsimOccurrence handling for the occurrence birth-death model
- 5y agoArchRIntroduces multi-omic functionality
Frequently asked questions
What is the difference between ArchR and fossilsim?
Both compete on the same themes — r-package — within Analytics. ArchR and fossilsim 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 ArchR better than fossilsim?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. ArchR and fossilsim 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 ArchR?
Top ArchR alternatives in Analytics are ranked by recent ship velocity. Browse the "ArchR alternatives" section above for the current picks, or visit /alternatives/archr-r for the full list with editorial commentary on each.
What are the best alternatives to fossilsim?
Top fossilsim alternatives in Analytics are ranked by recent ship velocity. Browse the "fossilsim alternatives" section above for the current picks, or visit /alternatives/fossilsim-r for the full list with editorial commentary on each.