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Comparison · Infra & APIs
lifecontingencies vs usethis
A side-by-side editorial comparison of lifecontingencies and usethis — release velocity, themes, recent moves, and the top alternatives to consider.
lifecontingencies vs usethis: at a glance
What is lifecontingencies?
An actuarial mainstay spends its releases on CI plumbing, not on new mathematics.
lifecontingencies is a long-running R package for actuarial life-contingency mathematics. Its three most recent tags show a maintainer keeping the infrastructure alive rather than extending the library: 1.5.2 is entirely author-metadata corrections, CI workflow repairs and release automation, 1.4.4 moved presentValue() onto Rcpp, and 1.4.1 states outright that it is identical to the version before it. The 1.5.2 notes jump from 1.4.4, so whatever happened in between never reached this feed.
What is usethis?
usethis swaps in the Air formatter and stops assuming RStudio is the editor
usethis is the tidyverse's project-scaffolding tool and, unlike much of the r-lib cohort, is still actively developed. Recent work moves it off its own assumptions: the cli package replaced its homegrown UI layer in 3.0.0, and 3.2.0 replaced tidy-style formatting with Air while widening what counts as a project root.
lifecontingencies vs usethis: editorial side-by-side
lifecontingencies
2.5INFRA · APIS
An actuarial mainstay spends its releases on CI plumbing, not on new mathematics.
◆ Current state
lifecontingencies is a long-running R package for actuarial life-contingency mathematics. Its three most recent tags show a maintainer keeping the infrastructure alive rather than extending the library: 1.5.2 is entirely author-metadata corrections, CI workflow repairs and release automation, 1.4.4 moved presentValue() onto Rcpp, and 1.4.1 states outright that it is identical to the version before it. The 1.5.2 notes jump from 1.4.4, so whatever happened in between never reached this feed.
◆ Where it's heading
The one genuine engineering thread is performance: rewriting presentValue() in Rcpp targets the innermost loop of every annuity and insurance valuation the package performs. Everything since has been about keeping CRAN checks green across platforms — TinyTeX install order, cross-platform caching, automated release tagging — plus a set of Italian actuarial benchmark tests that pin results against published tables. That is maintenance discipline on a stable API, not expansion.
◆ Prediction
Expect further patch tags carrying CI and documentation work, with any Rcpp performance work extending from presentValue() into adjacent valuation functions if it continues at all.
usethis
0.0INFRA · APIS
usethis swaps in the Air formatter and stops assuming RStudio is the editor
◆ Current state
usethis is the tidyverse's project-scaffolding tool and, unlike much of the r-lib cohort, is still actively developed. Recent work moves it off its own assumptions: the cli package replaced its homegrown UI layer in 3.0.0, and 3.2.0 replaced tidy-style formatting with Air while widening what counts as a project root.
◆ Where it's heading
The direction is de-RStudio-ing. Project detection now recognizes a VS Code settings file, a Quarto config, or an renv lockfile; use_course() opens folders in Positron as readily as RStudio; Quarto is a first-class vignette and project format. usethis is being rebuilt around the editor and format plurality that has grown up around R, and the pre-3.0 RStudio-and-styler era is being deprecated out.
◆ Prediction
Expect Quarto and Positron support to keep filling in - create_quarto_project() is still flagged experimental - and further deprecation of the RStudio-specific and styler-era helpers.
Alternatives to lifecontingencies and usethis
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 lifecontingencies or usethis.
forestploter
A forest plot package that keeps handing users control of one more graphical detail.
ggInterval
Interval-valued data plotting, spending 2026 making its function names and examples survive CRAN.
rgm
A microbiome network model that got itself un-archived by deleting the dependency that killed it.
contagionchannels
Three releases in ten days, every one of them a CRAN reviewer's correction rather than a code change.
tidyaudit
Pipeline provenance for tidyverse workflows, recording what changed at each step without keeping the data.
See all lifecontingencies alternatives → · See all usethis alternatives →
Recent activity from lifecontingencies and usethis
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agolifecontingenciesCI and metadata work; Italian actuarial benchmark tests added
- 8mo agolifecontingenciespresentValue() moves to Rcpp
- 11mo agolifecontingenciesTag identical to the previous version
- 11mo agousethiscreate_quarto_project() exits early without the Quarto CLI
- 11mo agousethisuse_air() adopts the Air formatter; project detection widens ⚡
- 1y agousethisuse_vignette() and use_article() support Quarto
- 2y agousethisUI moves to cli; Travis and AppVeyor helpers removed
- 2y agousethisCRAN-requested documentation fixes
- 3y agousethisVersion comparisons always pass character input
Frequently asked questions
What is the difference between lifecontingencies and usethis?
They serve adjacent needs but don't currently overlap on shipped themes. lifecontingencies is currently shipping more aggressively (velocity 2.5 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 lifecontingencies better than usethis?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. lifecontingencies is currently shipping more aggressively (velocity 2.5 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 lifecontingencies?
Top lifecontingencies alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "lifecontingencies alternatives" section above for the current picks, or visit /alternatives/lifecontingencies for the full list with editorial commentary on each.
What are the best alternatives to usethis?
Top usethis alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "usethis alternatives" section above for the current picks, or visit /alternatives/usethis for the full list with editorial commentary on each.