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Comparison · Analytics
EpiNow2 vs rjwsacruncher
A side-by-side editorial comparison of EpiNow2 and rjwsacruncher — release velocity, themes, recent moves, and the top alternatives to consider.
EpiNow2 vs rjwsacruncher: at a glance
What is EpiNow2?
EpiNow2 unified its model interface, then went back to deepen the estimators behind it
EpiNow2 estimates reproduction numbers, infections and delay distributions from incomplete epidemiological reporting data. 1.8.0 was the structural turning point: every main modelling function now returns a consistent S3 object with `fit`, `args` and `observations`, reachable through shared accessors. The releases either side of it work on estimator quality — accumulation of irregularly reported data in 1.7.0, and a substantial expansion of `estimate_truncation()` in 1.9.0.
What is rjwsacruncher?
A thin R wrapper around a Java seasonal-adjustment tool, slowly absorbing the setup work.
rjwsacruncher drives JDemetra+'s JWSACruncher from R, handling parameter files and batch runs of seasonal adjustment workspaces. Recent releases have shifted from wrapping the executable to managing its installation: 0.2.3 adds a downloader for JDemetra+ itself, a check that a given directory really contains the cruncher binary, and tolerance for users pointing at the executable instead of its bin directory.
EpiNow2 vs rjwsacruncher: editorial side-by-side
EpiNow2
0.0ANALYTICS
EpiNow2 unified its model interface, then went back to deepen the estimators behind it
◆ Current state
EpiNow2 estimates reproduction numbers, infections and delay distributions from incomplete epidemiological reporting data. 1.8.0 was the structural turning point: every main modelling function now returns a consistent S3 object with `fit`, `args` and `observations`, reachable through shared accessors. The releases either side of it work on estimator quality — accumulation of irregularly reported data in 1.7.0, and a substantial expansion of `estimate_truncation()` in 1.9.0.
◆ Where it's heading
The package spent this window paying down interface debt and is now extending from the tidier base. Options that existed only for `estimate_infections()` have been propagated outward: `estimate_truncation()` gained the full `dist_spec` delay families, `obs_opts()` observation model selection between Poisson and negative binomial, and the `likelihood` and `return_likelihood` settings that make prior-only fits and loo-compatible output possible. Hardcoded assumptions are being replaced by specifiable ones in the same motion — the truncation model's additive noise term was a fixed `sigma ~ normal(0, 1)` prior and is now a `dist_spec` argument.
◆ Prediction
Expect the remaining modelling functions to keep converging on the shared options interface, since the last two releases have each moved another function onto it. A new `estimate_dist()` for interval-censored linelist data suggests delay estimation is the area still gaining surface.
rjwsacruncher
0.0ANALYTICS
A thin R wrapper around a Java seasonal-adjustment tool, slowly absorbing the setup work.
◆ Current state
rjwsacruncher drives JDemetra+'s JWSACruncher from R, handling parameter files and batch runs of seasonal adjustment workspaces. Recent releases have shifted from wrapping the executable to managing its installation: 0.2.3 adds a downloader for JDemetra+ itself, a check that a given directory really contains the cruncher binary, and tolerance for users pointing at the executable instead of its bin directory.
◆ Where it's heading
The work is defensive. Most of each release addresses a way users misconfigure paths or versions — clearer errors, a startup message naming which cruncher version the options select, and a standalone flag on the downloader. The package is absorbing the friction of a Java dependency it does not control.
◆ Prediction
Expect continued compatibility work as JDemetra+ 3.x diverges from 2.x, since the version split is already surfaced as a user-facing option rather than resolved internally.
Alternatives to EpiNow2 and rjwsacruncher
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 EpiNow2 or rjwsacruncher.
tidytransit
tidytransit tracks the GTFS spec as it grows, one reader and one router feature at a time.
oblicubes
A tiny grid renderer for oblique-projection cubes, complete since its first release.
biocro
BioCro swapped an unstable iteration for real root finders, changing what its crop models compute.
redist
redist keeps rewriting the sampler underneath a district-drawing API it has held stable since 4.0.
epiflows
epiflows has shipped four releases in eight years, none of which changed the code.
See all EpiNow2 alternatives → · See all rjwsacruncher alternatives →
Recent activity from EpiNow2 and rjwsacruncher
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1mo agoEpiNow2estimate_truncation gains full delay and observation options
- 5mo agorjwsacruncherdownload_jdemetra() and bin-directory validation added
- 6mo agoEpiNow2Unified return objects and shared accessors across all models ⚡
- 1y agorjwsacruncherread_param_file() no longer forces full_series_name to FALSE
- 1y agoEpiNow2Patch for an upstream rstan issue
- 1y agorjwsacruncherRenaming controls and configurable parameter file names
- 1y agoEpiNow2Accumulation for irregularly reported data; unified priors
- 1y agoEpiNow2Matern kernel spectral density fix and GP prior revert
- 1y agoEpiNow2Gaussian Process model improvements and explicit defaults
- 2y agorjwsacruncherParameter-file read/write functions added; cruncher 3.x support
- 7y agorjwsacruncherFirst CRAN release
Frequently asked questions
What is the difference between EpiNow2 and rjwsacruncher?
They serve adjacent needs but don't currently overlap on shipped themes. EpiNow2 and rjwsacruncher 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 EpiNow2 better than rjwsacruncher?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. EpiNow2 and rjwsacruncher 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 EpiNow2?
Top EpiNow2 alternatives in Analytics are ranked by recent ship velocity. Browse the "EpiNow2 alternatives" section above for the current picks, or visit /alternatives/epinow2 for the full list with editorial commentary on each.
What are the best alternatives to rjwsacruncher?
Top rjwsacruncher alternatives in Analytics are ranked by recent ship velocity. Browse the "rjwsacruncher alternatives" section above for the current picks, or visit /alternatives/rjwsacruncher for the full list with editorial commentary on each.