phyloatlas
An atlas of the tree of life that keeps publishing what it got wrong, and stopped shipping the trees it does not own.
Comparison · Infra & APIs
lifecontingencies vs missSBM
A side-by-side editorial comparison of lifecontingencies and missSBM — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:r-package
lifecontingencies vs missSBM: 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 missSBM?
missSBM returns after four dormant years with a stricter API and a new refinement step.
The package fits stochastic block models to networks with missing data, covering both missing-at-random and informative sampling designs. After a run of releases from 2019 to 2022, the feed goes quiet until this year's 1.1.0, which breaks the control interface, exposes the block split and merge operations as testable instance methods, and adds a node-swap refinement pass that runs after variational convergence.
lifecontingencies vs missSBM: 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.
missSBM
2.5INFRA · APIS
missSBM returns after four dormant years with a stricter API and a new refinement step.
◆ Current state
The package fits stochastic block models to networks with missing data, covering both missing-at-random and informative sampling designs. After a run of releases from 2019 to 2022, the feed goes quiet until this year's 1.1.0, which breaks the control interface, exposes the block split and merge operations as testable instance methods, and adds a node-swap refinement pass that runs after variational convergence.
◆ Where it's heading
The new release is maintenance-driven in the best sense: it targets the parts of the codebase that were hard to test or easy to misuse. Replacing free-form control lists with a function of named, defaulted arguments turns silent typos into errors, and pulling the exploration logic out of the collection class makes the search algorithm independently testable without changing it. The polish step addresses a known weakness, reaching individually misclassified nodes that split and merge moves cannot fix.
◆ Prediction
Given the gap before this release, the near-term question is whether the cadence resumes at all; the refactoring it contains would support further algorithmic work if it does.
Alternatives to lifecontingencies and missSBM
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 missSBM.
OpenLand
Land-change analysis in R that has spent six years defending one download link.
FoRecoML
The machine-learning arm of a forecast reconciliation toolkit, four months old and already sharing its sibling's plumbing.
FoReco
Forecast reconciliation with a real object model, five years after it started returning bare matrices.
wooldridge
A textbook data package whose whole job is to stay installable, and whose releases prove how much work that is.
L1centrality
A graph-centrality package that spent 2026 making its existing measures usable at scale, then went quiet.
See all lifecontingencies alternatives → · See all missSBM alternatives →
Recent activity from lifecontingencies and missSBM
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agolifecontingenciesCI and metadata work; Italian actuarial benchmark tests added
- 27d agomissSBMReplaces raw control lists with missSBM_param(), adds polish()
- 8mo agolifecontingenciespresentValue() moves to Rcpp
- 11mo agolifecontingenciesTag identical to the previous version
- 3y agomissSBMAdapts to Matrix 1.4-2 and fixes HTML5 documentation
- 4y agomissSBMFixes linking against nloptR 2.0.0
- 5y agomissSBMRelaxes CRAN test tolerances to avoid random failures
- 5y agomissSBMRewrites optimisation in C++ armadillo with sparse matrices
- 5y agomissSBMRenames core functions and interfaces with the sbm package
Frequently asked questions
What is the difference between lifecontingencies and missSBM?
Both compete on the same themes — r-package — within Infra & APIs. lifecontingencies and missSBM are shipping at a similar cadence (velocity 2.5 vs 2.5, 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 lifecontingencies better than missSBM?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. lifecontingencies and missSBM are shipping at a similar cadence (velocity 2.5 vs 2.5, 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 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 missSBM?
Top missSBM alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "missSBM alternatives" section above for the current picks, or visit /alternatives/misssbm for the full list with editorial commentary on each.