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Comparison · Infra & APIs

ggalign vs PowerTOST

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

ggalign vs PowerTOST: at a glance

FeatureggalignPowerTOST
SectorInfra & APIsInfra & APIs
Velocity score0.00.0
Sparks · 30d00
Top themesggplot2, layout, heatmaps, s7bioequivalence, sample-size, regulatory, pharmacometrics
Last editorial update1h ago23h ago
WebsiteVisit →Visit →

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 →

What is PowerTOST?

A bioequivalence sample-size workhorse whose news is which regulator it now covers

PowerTOST computes power and sample size for bioequivalence and its changelog reads as a record of regulatory divergence more than statistical development. Version 1.5-3 added the Gulf Co-operation Council as a regulator setting; 1.5-4 and 1.5-6 stripped 'FDA' out of the narrow-therapeutic-index function names once China's CDE began requiring the same evaluation. The most recent release, 1.5-7, is a single fix to how nvec() splits a total sample size across sequences.

Read the full PowerTOST trajectory →

ggalign vs PowerTOST: editorial side-by-side

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.

P
PowerTOST
INFRA · APIS
0.0

A bioequivalence sample-size workhorse whose news is which regulator it now covers

◆ Current state

PowerTOST computes power and sample size for bioequivalence and its changelog reads as a record of regulatory divergence more than statistical development. Version 1.5-3 added the Gulf Co-operation Council as a regulator setting; 1.5-4 and 1.5-6 stripped 'FDA' out of the narrow-therapeutic-index function names once China's CDE began requiring the same evaluation. The most recent release, 1.5-7, is a single fix to how nvec() splits a total sample size across sequences.

◆ Where it's heading

The package is in long maintenance with a widening regulatory surface: the statistical methods are settled, and releases arrive when an agency publishes a framework that can be expressed as a settings variant of an existing method. Function naming has been deliberately decoupled from any single agency, with the deprecated FDA-suffixed aliases carried for years before removal. Cadence has slowed to roughly one release every eighteen months.

◆ Prediction

The next release is most likely another regulator setting or a small fix; on the deprecation notice already given, the power.NTIDFDA()-style aliases are the obvious removal candidate.

Alternatives to ggalign and PowerTOST

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 ggalign or PowerTOST.

See all ggalign alternatives → · See all PowerTOST alternatives →

Recent activity from ggalign and PowerTOST

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

  1. 10mo agoggalignalignpatch internals moved to S7; Patch object exported
  2. 10mo agoPowerTOSTFix for splitting total sample size across sequences
  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. 2y agoPowerTOSTNTID functions renamed off the FDA acronym; GCC guidance in vignettes
  9. 4y agoPowerTOSTpower.NTID() aliases added; FDA-suffixed names deprecated
  10. 5y agoPowerTOSTGulf Co-operation Council added as a regulator setting
  11. 5y agoPowerTOSTMaintenance release with vignette and documentation clarifications
  12. 5y agoPowerTOSTstringsAsFactors fix for older R in a vignette example

Frequently asked questions

What is the difference between ggalign and PowerTOST?

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

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

What are the best alternatives to PowerTOST?

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