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poissonreg vs webchem

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

poissonreg vs webchem: at a glance

Featurepoissonregwebchem
SectorAnalyticsAnalytics
Velocity score0.00.0
Sparks · 30d00
Top themestidymodels, count-regression, glmnet, r-languagecheminformatics, web-apis, data-access, ropensci
Last editorial update45m ago2h ago
WebsiteVisit →Visit →

What is poissonreg?

poissonreg gave its models away to parsnip and kept the glue — now it just keeps glmnet honest.

poissonreg is a tidymodels extension that wires Poisson and zero-inflated count regression into the parsnip interface. Its defining event was giving up ownership: the model definition functions moved into parsnip itself, leaving this package as engine bindings and prediction plumbing. The current dev release is entirely correctness and hygiene work — glmnet predictions now default to mean counts rather than the linear predictor, and single-observation prediction works at last.

Read the full poissonreg trajectory →

What is webchem?

Adding chemical databases with one hand while public ones close programmatic access with the other.

webchem is the R interface to public chemical data — retrieving identifiers, properties and structures across roughly a dozen web services. Its release history reads as a running account of which of those services still allow automated access. Version 1.3.0 removed two functions outright because their sources withdrew: ChemIDplus was retired by the NLM, and PAN stopped supporting programmatic access. Version 1.3.1 continues the pattern, updating URLs that stopped working and noting that ChemSpider InChIKey validation now requires an API key like the rest of that provider's endpoints.

Read the full webchem trajectory →

poissonreg vs webchem: editorial side-by-side

P
poissonreg
ANALYTICS
0.0

poissonreg gave its models away to parsnip and kept the glue — now it just keeps glmnet honest.

◆ Current state

poissonreg is a tidymodels extension that wires Poisson and zero-inflated count regression into the parsnip interface. Its defining event was giving up ownership: the model definition functions moved into parsnip itself, leaving this package as engine bindings and prediction plumbing. The current dev release is entirely correctness and hygiene work — glmnet predictions now default to mean counts rather than the linear predictor, and single-observation prediction works at last.

◆ Where it's heading

Release cadence has collapsed from yearly to a four-year gap between 1.0.1 and the current development version, and the content has shifted from features to deduplication against parsnip — copied helper functions replaced by the upstream originals, obsolete generic registrations removed, tests migrated to the shared extension-package pattern. This is what a stabilized tidymodels satellite looks like: the interface lives upstream, and the package's job is to not drift from it.

◆ Prediction

The dev version's accumulated fixes point to a CRAN release of 1.0.2 as the next move, with content limited to the glmnet prediction corrections rather than any new engine or model type.

W
webchem
ANALYTICS
0.0

Adding chemical databases with one hand while public ones close programmatic access with the other.

◆ Current state

webchem is the R interface to public chemical data — retrieving identifiers, properties and structures across roughly a dozen web services. Its release history reads as a running account of which of those services still allow automated access. Version 1.3.0 removed two functions outright because their sources withdrew: ChemIDplus was retired by the NLM, and PAN stopped supporting programmatic access. Version 1.3.1 continues the pattern, updating URLs that stopped working and noting that ChemSpider InChIKey validation now requires an API key like the rest of that provider's endpoints.

◆ Where it's heading

Two opposing forces run through these entries. The package keeps widening its coverage — ChEMBL in 1.2.0, LIPID MAPS and SwissLipids identifiers via Wikidata, structure images, Mol export — while the open, unauthenticated end of the chemical web keeps contracting. The other consistent thread is interface harmonisation: successive releases have converged the get_* functions on the same query and from arguments, tibble returns, and CAS reformatting, so the package feels like one interface rather than a dozen wrappers.

◆ Prediction

Expect further defunct functions and URL repairs as more providers move behind keys or shut down, alongside occasional additions of sources that remain open. The entries show no sign of a general credential-management layer, which is what a package facing this trend would eventually need.

Alternatives to poissonreg and webchem

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 poissonreg or webchem.

See all poissonreg alternatives → · See all webchem alternatives →

Recent activity from poissonreg and webchem

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

  1. 3mo agopoissonregglmnet predictions now default to mean counts
  2. 1y agowebchemRepairs broken URLs; ChemSpider check now needs a key
  3. 3y agowebchemChemIDplus and PAN queries removed as sources shut down
  4. 3y agowebchemAdds ChEMBL access for bioactive compound data
  5. 3y agopoissonregDocumentation regenerated for valid HTML5
  6. 4y agowebchemcir_query() returns a tibble, a breaking change
  7. 4y agopoissonregCase weight support tracks parsnip 1.0.0
  8. 4y agopoissonregModel definitions move out of poissonreg into parsnip
  9. 4y agowebchemAdds Mol structure export; aw_query renamed to bcpc_query
  10. 4y agopoissonregglm becomes the default engine; tidy() for hurdle models
  11. 5y agowebchemFetches LIPID MAPS and SwissLipids identifiers from Wikidata
  12. 5y agopoissonregFirst release, with a glmnet column-order safeguard

Frequently asked questions

What is the difference between poissonreg and webchem?

They serve adjacent needs but don't currently overlap on shipped themes. poissonreg and webchem 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 poissonreg better than webchem?

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

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

What are the best alternatives to webchem?

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