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readxl vs rstanarm

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

readxl vs rstanarm: at a glance

Featurereadxlrstanarm
SectorAnalyticsAnalytics
Velocity score0.00.0
Sparks · 30d00
Top themesr, excel, data-import, libxlsbayesian, stan, regression-models, dependency-migration
Last editorial update8h ago1h ago
WebsiteVisit →Visit →

What is readxl?

readxl has shipped almost nothing but vendored-dependency upkeep since 2022.

readxl reads Excel files into R without requiring Excel, bundling the libxls and RapidXML C libraries. Four of its last six releases state outright that they contain no user-facing changes, existing instead to satisfy CRAN, silence a sanitizer warning, or re-embed a patched libxls.

Read the full readxl trajectory →

What is rstanarm?

rstanarm is community-maintained now, tracking Stan and lme4 rather than adding models.

2.32.2 is entirely infrastructure and dependency work: formula machinery migrated from lme4 to reformulas, `r_eff` no longer computed for loo by default, the Stan R packages repo replaced by R-Universe, rstantools adopted to fix build and export errors, and CRAN NOTE cleanups — contributed largely by four first-time contributors. 2.32.1 and 2.26.1 follow the same pattern, tracking rstan syntax and adding `posterior::as_draws()` support. The last release with substantive modelling content is 2.21.1, which changed how default priors are determined and flipped `autoscale` to FALSE outside default priors.

Read the full rstanarm trajectory →

readxl vs rstanarm: editorial side-by-side

R
readxl
ANALYTICS
0.0

readxl has shipped almost nothing but vendored-dependency upkeep since 2022.

◆ Current state

readxl reads Excel files into R without requiring Excel, bundling the libxls and RapidXML C libraries. Four of its last six releases state outright that they contain no user-facing changes, existing instead to satisfy CRAN, silence a sanitizer warning, or re-embed a patched libxls.

◆ Where it's heading

The real work has become stewardship of vendored C code: absorbing libxls security fixes and keeping the package compiling across Alpine, UBSAN and successive cpp11 versions. 1.5.0 breaks the streak only slightly, with a network-drive permission warning fix and a cpp11 floor raised to dodge a segfault.

◆ Prediction

Expect the same rhythm — releases triggered by toolchain breakage or an upstream libxls patch rather than new spreadsheet-reading capability.

R
rstanarm
ANALYTICS
0.0

rstanarm is community-maintained now, tracking Stan and lme4 rather than adding models.

◆ Current state

2.32.2 is entirely infrastructure and dependency work: formula machinery migrated from lme4 to reformulas, `r_eff` no longer computed for loo by default, the Stan R packages repo replaced by R-Universe, rstantools adopted to fix build and export errors, and CRAN NOTE cleanups — contributed largely by four first-time contributors. 2.32.1 and 2.26.1 follow the same pattern, tracking rstan syntax and adding `posterior::as_draws()` support. The last release with substantive modelling content is 2.21.1, which changed how default priors are determined and flipped `autoscale` to FALSE outside default priors.

◆ Where it's heading

The package has moved from feature development into ecosystem maintenance, and the contributor list shows why it survives: outside developers keep it compiling against a moving Stan, lme4 and CRAN. The `as_draws()` support and the reformulas migration both point the same way — rstanarm increasingly consumes shared infrastructure (posterior, reformulas, rstantools) instead of carrying its own.

◆ Prediction

Expect the next release to track another upstream change — rstan, reformulas or CRAN policy — rather than add model families. The pre-fit model surface looks settled.

Alternatives to readxl and rstanarm

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 readxl or rstanarm.

See all readxl alternatives → · See all rstanarm alternatives →

Recent activity from readxl and rstanarm

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

  1. 2mo agoreadxlreadxl 1.5.0 stops false access-denied warnings on network drives
  2. 10mo agorstanarmrstanarm 2.32.2 migrates formula machinery to reformulas
  3. 1y agoreadxlreadxl 1.4.5 clears a gcc UBSAN warning
  4. 1y agoreadxlreadxl 1.4.4 embeds libxls 1.6.3 with vulnerability fixes
  5. 2y agorstanarmrstanarm 2.32.1 fixes unit_vector error, enables LTO
  6. 2y agorstanarmrstanarm 2.26.1 adopts new rstan syntax and as_draws()
  7. 3y agoreadxlreadxl 1.4.3 ships with no user-facing changes
  8. 3y agoreadxlreadxl 1.4.2 embeds a libxls build fixing CVE-2021-27836
  9. 3y agoreadxlreadxl 1.4.1 regenerates help files for valid HTML5
  10. 4y agorstanarmrstanarm 2.21.3 fixes loo() and adds stan_jm offsets
  11. 6y agorstanarmrstanarm 2.21.1 changes default prior behaviour

Frequently asked questions

What is the difference between readxl and rstanarm?

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

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. readxl and rstanarm 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 readxl?

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

What are the best alternatives to rstanarm?

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