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Comparison · Infra & APIs

fastpos vs ggalign

A side-by-side editorial comparison of fastpos and ggalign — release velocity, themes, recent moves, and the top alternatives to consider.

fastpos vs ggalign: at a glance

Featurefastposggalign
SectorInfra & APIsInfra & APIs
Velocity score0.00.0
Sparks · 30d00
Top themessimulation, correlation, sample-size, rcppggplot2, layout, heatmaps, s7
Last editorial update23h ago1h ago
WebsiteVisit →Visit →

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.

Read the full fastpos trajectory →

What is ggalign?

Composable aligned layouts, rebuilt on S7 while ggplot2 4.0 lands underneath.

ggalign composes multiple ggplots against a shared observation ordering, covering heatmap annotation, oncoplots, phylogenies and circular layouts. Releases have come roughly monthly through 2025, first completing the layout system, then migrating the internals to S7 and absorbing the ggplot2 4.0 changes. The alignment machinery is now exported for other packages to build on.

Read the full ggalign trajectory →

fastpos vs ggalign: editorial side-by-side

F
fastpos
INFRA · APIS
0.0

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.

G
ggalign
INFRA · APIS
0.0

Composable aligned layouts, rebuilt on S7 while ggplot2 4.0 lands underneath.

◆ Current state

ggalign composes multiple ggplots against a shared observation ordering, covering heatmap annotation, oncoplots, phylogenies and circular layouts. Releases have come roughly monthly through 2025, first completing the layout system, then migrating the internals to S7 and absorbing the ggplot2 4.0 changes. The alignment machinery is now exported for other packages to build on.

◆ Where it's heading

Two threads run in parallel. One widens what can be aligned, with sector facets, ideograms, image point shapes and observation linking. The other keeps rebuilding the foundation, with the S7 migration, repeated renames toward consistent naming, and the deliberate handing of element_polygon() and element_curve() upstream to ggplot2. The renaming is aggressive enough that each recent release soft-deprecates something.

◆ Prediction

With the internals on S7 and the Patch object exported, the next step is most likely stabilising those names rather than another refactor.

Alternatives to fastpos and ggalign

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 fastpos or ggalign.

See all fastpos alternatives → · See all ggalign alternatives →

Recent activity from fastpos and ggalign

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 10mo agoggalignalignpatch internals moved to S7; Patch object exported
  2. 10mo agofastposcpp11 restriction removed; index_pop now an integer
  3. 11mo agoggalignInternals migrated to S7; ideogram, tags and image shapes
  4. 1y agoggalignz aesthetic scales and guide collection in borders
  5. 1y agoggalignchannelGrob() draws across facets; ggplot2 3.5.2 fix
  6. 1y agoggalignLayout system declared complete; polar facets and coord_circle()
  7. 1y agoggalignLayouts split into discrete and continuous; linking system added
  8. 4y agofastposMulticore fix for pbmcapply; Windows limited to one core
  9. 4y agofastposR Journal review release: renamed precision parameters, manual corridor limits
  10. 5y agofastposMore informative test failures; interactive-only progress bars
  11. 6y agofastposMulticore support via the future package
  12. 6y agofastposExact-rho population generation and C++ progress bar fixes

Frequently asked questions

What is the difference between fastpos and ggalign?

They serve adjacent needs but don't currently overlap on shipped themes. fastpos and ggalign 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 fastpos better than ggalign?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. fastpos and ggalign 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 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.

What are the best alternatives to ggalign?

Top ggalign alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "ggalign alternatives" section above for the current picks, or visit /alternatives/ggalign for the full list with editorial commentary on each.