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Comparison · Infra & APIs
admtools vs fastpos
A side-by-side editorial comparison of admtools and fastpos — release velocity, themes, recent moves, and the top alternatives to consider.
admtools vs fastpos: at a glance
What is admtools?
The age-depth engine under a small stratigraphy stack, growing one adapter at a time
admtools estimates and manipulates age-depth models, with the generics time_to_strat() and strat_to_time() as the transformation layer a small stratigraphy stack is built on. Since 0.1.0 it has accumulated the S3 vocabulary that work needs — sac for sediment accumulation curves, timelist and stratlist for time- and height-associated data — and then adapters outward: pre_paleoTS for StratPal and paleoTS in 0.4.0, FossilSim taxonomy and fossils objects in 0.5.0, and age-to-time transformation for FossilSim in 0.6.0. Version 0.5.0 also added what it calls basic functionality for depth-depth models alongside the age-depth ones.
What is fastpos?
Dormant three years, then a two-line release nobody using it would notice
fastpos finds the critical point of stability for a Pearson correlation, a simulation problem whose C++ implementation is the entire reason the package exists. Its substantive work concluded in 2022 with 0.5.0, the release prepared during R Journal review, which renamed the precision parameters, moved multicore work to pbapply and let users set corridor limits directly. After three years of silence, 0.6.0 removes an internal restriction to cpp11 and changes index_pop to an integer.
admtools vs fastpos: editorial side-by-side
admtools
0.0INFRA · APIS
The age-depth engine under a small stratigraphy stack, growing one adapter at a time
◆ Current state
admtools estimates and manipulates age-depth models, with the generics time_to_strat() and strat_to_time() as the transformation layer a small stratigraphy stack is built on. Since 0.1.0 it has accumulated the S3 vocabulary that work needs — sac for sediment accumulation curves, timelist and stratlist for time- and height-associated data — and then adapters outward: pre_paleoTS for StratPal and paleoTS in 0.4.0, FossilSim taxonomy and fossils objects in 0.5.0, and age-to-time transformation for FossilSim in 0.6.0. Version 0.5.0 also added what it calls basic functionality for depth-depth models alongside the age-depth ones.
◆ Where it's heading
This package moves in step with StratPal, from the same group: admtools 0.4.0 shipped its pre_paleoTS transformations fifty-seven minutes before StratPal released the class itself, and both took on FossilSim within a month of each other in spring 2025. The pattern is consistent — establish generics, define classes, then connect to whatever package the field already uses. The depth-depth work is the one thread pointing inward rather than outward, and it is still described as basic.
◆ Prediction
Depth-depth models are the obvious thing to finish, since they mirror age-depth machinery the package already has; expect any release here to be shadowed by a matching change in StratPal within weeks either side.
fastpos
0.0INFRA · APIS
Dormant three years, then a two-line release nobody using it would notice
◆ Current state
fastpos finds the critical point of stability for a Pearson correlation, a simulation problem whose C++ implementation is the entire reason the package exists. Its substantive work concluded in 2022 with 0.5.0, the release prepared during R Journal review, which renamed the precision parameters, moved multicore work to pbapply and let users set corridor limits directly. After three years of silence, 0.6.0 removes an internal restriction to cpp11 and changes index_pop to an integer.
◆ Where it's heading
This is a finished piece of research software in low-effort upkeep. The changelog's centre of gravity is the R Journal review process, and once that concluded the package stopped changing. The single release since is toolchain work of the kind that keeps a package compiling rather than anything a user would see.
◆ Prediction
Expect nothing beyond occasional compilation or CRAN-check fixes unless the accompanying paper draws requests for other correlation types or resampling schemes.
Alternatives to admtools and fastpos
Other Infra & APIs 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 admtools or fastpos.
Cursor
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incident.io
Nexus does the diagnosis; the agent is now reaching into the status page too.
Warp
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Okta
Okta's developer blog is a Cross App Access campaign, now diluted by advocacy-team storytelling.
tealeaves
A leaf-temperature model that finished its job in 2020 and has stayed finished
See all admtools alternatives → · See all fastpos alternatives →
Recent activity from admtools and fastpos
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 10mo agofastposcpp11 restriction removed; index_pop now an integer
- 1y agoadmtoolsAge-to-time transformation for FossilSim integration
- 1y agoadmtoolsDepth-depth models and FossilSim object transformations
- 1y agoadmtoolspre_paleoTS transformations and age-depth model anchoring
- 1y agoadmtoolsMore sedimentation-rate generator options and sac utilities
- 2y agoadmtoolstimelist and stratlist classes; unified transformation syntax
- 2y agoadmtoolsMultiple tie points, sedimentation-rate estimation and the sac class
- 4y agofastposMulticore fix for pbmcapply; Windows limited to one core
- 4y agofastposR Journal review release: renamed precision parameters, manual corridor limits
- 5y agofastposMore informative test failures; interactive-only progress bars
- 6y agofastposMulticore support via the future package
- 6y agofastposExact-rho population generation and C++ progress bar fixes
Frequently asked questions
What is the difference between admtools and fastpos?
They serve adjacent needs but don't currently overlap on shipped themes. admtools and fastpos 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 admtools better than fastpos?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. admtools and fastpos 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 Infra & APIs products to evaluate alongside.
What are the best alternatives to admtools?
Top admtools alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "admtools alternatives" section above for the current picks, or visit /alternatives/admtools for the full list with editorial commentary on each.
What are the best alternatives to fastpos?
Top fastpos alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "fastpos alternatives" section above for the current picks, or visit /alternatives/fastpos for the full list with editorial commentary on each.