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The MSNI humanitarian needs framework as code, rewritten and re-broken every year
Comparison · Infra & APIs
Skipper vs statpsych
A side-by-side editorial comparison of Skipper and statpsych — release velocity, themes, recent moves, and the top alternatives to consider.
Skipper vs statpsych: at a glance
What is Skipper?
Skipper trims a 4x memory regression out of routesrv, days after shipping h2c
Zalando's HTTP router ships patch tags almost daily, and most carry a single dependency bump or a one-line auth fix. The substance in this window is v0.27.63, which stops routesrv holding an uncompressed route tree alongside the compressed buffer: retained memory in the release's own benchmark falls from 30.7 MB to 2.0 MB, undoing most of the 4x increase zone-aware routing had introduced. Around it sit narrow auth repairs, and an eskip parser change that finally accepts negative numeric arguments in predicates and filters.
What is statpsych?
A statistics catalogue for psychology that grows by the release and rarely changes shape.
statpsych supplies confidence intervals, hypothesis tests, power calculations and sample-size planning for the designs psychology researchers actually run, exposed as several hundred small named functions rather than a modelling framework. Version 2.0.0 adds eight functions across logistic model performance, Kendall tau-a intervals and sample sizes, intraclass correlation testing, Geary kurtosis and Mann-Whitney power, and retires three names in favour of generalised replacements. The major version number reflects those removals rather than a change in how the package is used.
Skipper vs statpsych: editorial side-by-side
Skipper
5.0INFRA · APIS
Skipper trims a 4x memory regression out of routesrv, days after shipping h2c
◆ Current state
Zalando's HTTP router ships patch tags almost daily, and most carry a single dependency bump or a one-line auth fix. The substance in this window is v0.27.63, which stops routesrv holding an uncompressed route tree alongside the compressed buffer: retained memory in the release's own benchmark falls from 30.7 MB to 2.0 MB, undoing most of the 4x increase zone-aware routing had introduced. Around it sit narrow auth repairs, and an eskip parser change that finally accepts negative numeric arguments in predicates and filters.
◆ Where it's heading
Two threads run through the recent tags. The data path keeps getting real work - leastRequests balancing, then h2c end to end in v0.27.57, now the memory cost of zone-aware routing being paid back. The auth filters, by contrast, are only being maintained: token introspection, grant auth, and now the OIDC Referer handling are fixes rather than new capability, and several are follow-ups to each other rather than independent bugs.
◆ Prediction
Zone-aware routing looks like the source of the recent memory attention, so expect further tuning around route storage and the hash computation done on every pull, which the release's second benchmark already isolates. The OIDC cookie change is the second link in an auth chain that started with the grant-auth fix, and is likely to draw another follow-up.
statpsych
0.0INFRA · APIS
A statistics catalogue for psychology that grows by the release and rarely changes shape.
◆ Current state
statpsych supplies confidence intervals, hypothesis tests, power calculations and sample-size planning for the designs psychology researchers actually run, exposed as several hundred small named functions rather than a modelling framework. Version 2.0.0 adds eight functions across logistic model performance, Kendall tau-a intervals and sample sizes, intraclass correlation testing, Geary kurtosis and Mann-Whitney power, and retires three names in favour of generalised replacements. The major version number reflects those removals rather than a change in how the package is used.
◆ Where it's heading
Every release in this window is the same shape: a list of new functions, occasionally a rename. The package grows by filling cells in a grid of estimand, design and inferential goal, and 2.0.0 is notable only for finally deleting the three names its generalised replacements had superseded. That makes it a reference library whose value is coverage and stability, not direction, and the entries give no sign of that changing.
◆ Prediction
Expect the accretion to continue along the same axes, with sample-size and power counterparts filled in for estimands that currently have interval functions but no planning ones. The 2.0.0 deletions suggest occasional consolidation passes when a generalised function makes older specific ones redundant.
Alternatives to Skipper and statpsych
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 Skipper or statpsych.
inlabru
A Bayesian spatial modelling package rebuilding its foundations one breaking release at a time
afcharts
UK government chart styling in ggplot2, chasing ggplot2 v4 and stretching its palette to five.
coga
A gamma-convolution density package that reached completion in 2018 and has coasted since.
smam
Animal-movement models in R, where new stochastic processes arrive years apart.
baseq
A basic DNA and RNA sequence toolkit that went quiet for three years, then jumped to 2.0.
See all Skipper alternatives → · See all statpsych alternatives →
Recent activity from Skipper and statpsych
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 20h agoSkipperMove OIDC flow protection from Referer to cookies
- 20h agoSkipperv0.27.63: Store routes compressed-only, decompress on demand (#4198)
- 1d agoSkipperEskip predicates and filters accept negative numbers
- 1d agoSkipperFix token introspection handling
- 1d agoSkipperFix grant auth flow
- 2d agoSkipperUpdate outdated golang.org/x dependencies
- 1mo agostatpsychKendall tau, logistic fit measures added; three names retired
- 7mo agostatpsychIntraclass correlation and diversity indices gain full coverage
- 1y agostatpsychstatpsych 1.8
- 2y agostatpsychCorrelation tests and finite-population corrections added
- 2y agostatpsychCoefficient of variation and 2x2 within-subjects effects
- 3y agostatpsychPower calculations added for means, proportions and correlations
Frequently asked questions
What is the difference between Skipper and statpsych?
They serve adjacent needs but don't currently overlap on shipped themes. Skipper is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Skipper better than statpsych?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Skipper is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to Skipper?
Top Skipper alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Skipper alternatives" section above for the current picks, or visit /alternatives/skipper for the full list with editorial commentary on each.
What are the best alternatives to statpsych?
Top statpsych alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "statpsych alternatives" section above for the current picks, or visit /alternatives/statpsych for the full list with editorial commentary on each.