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Comparison · Infra & APIs

bolasso vs lifecontingencies

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

Shared themes:r-package

bolasso vs lifecontingencies: at a glance

Featurebolassolifecontingencies
SectorInfra & APIsInfra & APIs
Velocity score0.02.5
Sparks · 30d00
Top themesvariable-selection, lasso, r-package, bootstrapactuarial-science, rcpp, cran, ci-maintenance
Last editorial update23h ago59m ago
WebsiteVisit →Visit →

What is bolasso?

Bootstrap lasso got a fast mode, a second selection rule, and multinomial support

bolasso implements the bootstrapped lasso, refitting a regularized regression across bootstrap replicates and selecting variables by how consistently they survive. The 0.3.0 release reshaped it: a fast argument computes one cross-validated lambda on the full dataset instead of cross-validating inside every replicate, and selected_variables() gained a choice between the variable inclusion probability rule and a quantile rule based on bootstrap confidence intervals. Since then 0.4.0 exposed the bootstrap indices through bootstrap_samples(), and 0.5.0 extended the whole surface to multinomial responses, returning one list element per outcome level.

Read the full bolasso trajectory →

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.

Read the full lifecontingencies trajectory →

bolasso vs lifecontingencies: editorial side-by-side

B
bolasso
INFRA · APIS
0.0

Bootstrap lasso got a fast mode, a second selection rule, and multinomial support

◆ Current state

bolasso implements the bootstrapped lasso, refitting a regularized regression across bootstrap replicates and selecting variables by how consistently they survive. The 0.3.0 release reshaped it: a fast argument computes one cross-validated lambda on the full dataset instead of cross-validating inside every replicate, and selected_variables() gained a choice between the variable inclusion probability rule and a quantile rule based on bootstrap confidence intervals. Since then 0.4.0 exposed the bootstrap indices through bootstrap_samples(), and 0.5.0 extended the whole surface to multinomial responses, returning one list element per outcome level.

◆ Where it's heading

The package spent 2022 dormant after its initial releases and has been actively developed since late 2024, moving from a single algorithm toward a workbench. The additions cluster around inspection rather than estimation: tidy() for bootstrap-level coefficients, plot_selection_thresholds() for selection stability across thresholds, plot_selected_variables() for the surviving covariates, and now the extracted bootstrap indices. Documented gaps remain, with mgaussian unsupported and multinomial prediction limited to class output.

◆ Prediction

The two stated limitations in 0.5.0 - no mgaussian family and class-only multinomial prediction - are the most likely next targets, since the maintainer flagged both as possible later additions.

L
lifecontingencies
INFRA · APIS
2.5

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.

Alternatives to bolasso and lifecontingencies

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 bolasso or lifecontingencies.

See all bolasso alternatives → · See all lifecontingencies alternatives →

Recent activity from bolasso and lifecontingencies

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

  1. 1d agolifecontingenciesCI and metadata work; Italian actuarial benchmark tests added
  2. 4mo agobolassoMultinomial responses supported across selection and plotting
  3. 8mo agolifecontingenciespresentValue() moves to Rcpp
  4. 10mo agobolassoBootstrap indices exposed via bootstrap_samples()
  5. 11mo agolifecontingenciesTag identical to the previous version
  6. 1y agobolassoFast estimation mode and a second variable selection rule
  7. 4y agobolassoBolasso v0.2.0
  8. 4y agobolassoBolasso v0.1.0

Frequently asked questions

What is the difference between bolasso and lifecontingencies?

Both compete on the same themes — r-package — within Infra & APIs. 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 bolasso better than lifecontingencies?

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 bolasso?

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

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.