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cfr vs pkglite

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

Shared themes:r-packages

cfr vs pkglite: at a glance

Featurecfrpkglite
SectorAnalyticsAnalytics
Velocity score0.00.0
Sparks · 30d00
Top themesepidemiology, severity-estimation, outbreak-analytics, epiverser-packages, pharma-submissions, packaging, file-handling
Last editorial update5h ago1h ago
WebsiteVisit →Visit →

What is cfr?

cfr packaged delay-corrected severity estimation, then went quiet on maintenance.

The package estimates disease severity and case ascertainment while correcting for the delay between a case being reported and its outcome being known. After the 0.1.1 rework of the estimation internals and a maintainer handover to Adam Kucharski, activity dropped to a vignette and an R-devel compatibility patch in February 2025.

Read the full cfr trajectory →

What is pkglite?

pkglite's whole job is knowing which files in an R package are text — and it keeps getting better at guessing.

pkglite packs an R package into a single plain-text file and unpacks it again, the mechanism pharmaceutical submissions use to move source through systems that accept text but not archives. The API settled at 0.2.0 with file specification templates, `merge()` and `prune()`. Every release since has improved the same thing: the dictionary that decides whether a file is text or binary, most recently rebuilt from the file extensions found across 21,369 CRAN packages.

Read the full pkglite trajectory →

cfr vs pkglite: editorial side-by-side

C
cfr
ANALYTICS
0.0

cfr packaged delay-corrected severity estimation, then went quiet on maintenance.

◆ Current state

The package estimates disease severity and case ascertainment while correcting for the delay between a case being reported and its outcome being known. After the 0.1.1 rework of the estimation internals and a maintainer handover to Adam Kucharski, activity dropped to a vignette and an R-devel compatibility patch in February 2025.

◆ Where it's heading

The methodological work is done and consolidated: likelihood approximation is now selected automatically from outbreak size and an initial severity estimate, and the internals were renamed with a dot prefix to close the public surface down to cfr_static(), cfr_rolling() and the data-preparation generic. Releases since have been documentation and compatibility only.

◆ Prediction

The 0.1.0 notes flagged time-varying ascertainment as future work and it has not appeared in the two releases since; nothing in these entries indicates when or whether it lands.

P
pkglite
ANALYTICS
0.0

pkglite's whole job is knowing which files in an R package are text — and it keeps getting better at guessing.

◆ Current state

pkglite packs an R package into a single plain-text file and unpacks it again, the mechanism pharmaceutical submissions use to move source through systems that accept text but not archives. The API settled at 0.2.0 with file specification templates, `merge()` and `prune()`. Every release since has improved the same thing: the dictionary that decides whether a file is text or binary, most recently rebuilt from the file extensions found across 21,369 CRAN packages.

◆ Where it's heading

The failure mode this package cares about is silent — misclassify a binary file as text and the round trip corrupts it, misclassify text as binary and it bloats or drops. So the work is empirical rather than architectural: mine real packages for what extensions actually appear, then widen coverage where specific ecosystems break the pattern. Stan interfaces via rstan brought `src/Makevars` and `src/Makefile` handling; machine learning frameworks brought their own binary formats. Dependencies have gone the other way, with cli removed and replaced by internal equivalents.

◆ Prediction

Expect the next substantive release to widen file specification coverage again for whatever package family the maintainers find breaking the default discovery, since that has been the content of every non-maintenance release for four years.

Alternatives to cfr and pkglite

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 cfr or pkglite.

See all cfr alternatives → · See all pkglite alternatives →

Recent activity from cfr and pkglite

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

  1. 5mo agopkgliteMaintainer email and CI workflow updates
  2. 1y agocfrR-devel difftime patch and an individual-data vignette
  3. 1y agopkgliteHandles Stan-interfacing packages and ML binary formats
  4. 1y agopkgliteExtension dictionary rebuilt from 21,369 CRAN packages
  5. 2y agocfrSeverity estimator picks its own likelihood approximation
  6. 2y agopkgliteTest helpers moved to helper.R
  7. 2y agocfrDelay-corrected severity and ascertainment estimation on CRAN
  8. 3y agopkgliteMore file types recognised; cli dependency dropped
  9. 5y agopkgliteFile collections gain merge, prune, and a tests template

Frequently asked questions

What is the difference between cfr and pkglite?

Both compete on the same themes — r-packages — within Analytics. cfr and pkglite 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 cfr better than pkglite?

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

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

What are the best alternatives to pkglite?

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