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Comparison · Infra & APIs
hicp vs volcalc
A side-by-side editorial comparison of hicp and volcalc — release velocity, themes, recent moves, and the top alternatives to consider.
hicp vs volcalc: at a glance
What is hicp?
Eurostat's inflation package moved its whole taxonomy to ECOICOP 2 and broke the old one on purpose.
hicp downloads and computes the Harmonised Index of Consumer Prices, and it is maintained inside Eurostat rather than around it. Version 1.1.0 switches the package default to ECOICOP version 2 for HICP, converts the spec.aggs and countries datasets into functions that answer per COICOP version, and drops the bundle-code machinery that only the older classification needs.
What is volcalc?
Rebuilt itself around SMILES and .mol input, then made the chemistry configurable
volcalc estimates the volatility of chemical compounds from their structure, implementing the SIMPOL.1 group-contribution method and the Meredith et al. variant. Version 2.0.0 severed the package from KEGG: calc_vol() takes .mol file paths or SMILES strings directly, is vectorized over multiple compounds, and the group-contribution maths was split into its own simpol1() function. Work since has been chemistry accuracy and configurability — the full set of SIMPOL.1 functional groups, volatility thresholds for clean atmosphere, polluted atmosphere or soil, user-supplied temperature, and a validate option returning NA when structure parsing looks suspect.
hicp vs volcalc: editorial side-by-side
hicp
0.0INFRA · APIS
Eurostat's inflation package moved its whole taxonomy to ECOICOP 2 and broke the old one on purpose.
◆ Current state
hicp downloads and computes the Harmonised Index of Consumer Prices, and it is maintained inside Eurostat rather than around it. Version 1.1.0 switches the package default to ECOICOP version 2 for HICP, converts the spec.aggs and countries datasets into functions that answer per COICOP version, and drops the bundle-code machinery that only the older classification needs.
◆ Where it's heading
Two breaking releases in seven months, each clearing a different kind of debt. 1.0.0 settled the API: consistent download-function names, aggregation split into tree-following and user-defined halves, a settings object threaded through everything. 1.1.0 then spent that stability on the classification migration. Datasets keep turning into functions, which is the tell that the package expects to serve several COICOP versions at once rather than one at a time.
◆ Prediction
The ecoicop1 compatibility path is defined but no longer the default, so the next question is how long it stays. Expect further helpers in the is.* family and continued movement of static data behind version-aware functions.
volcalc
0.0INFRA · APIS
Rebuilt itself around SMILES and .mol input, then made the chemistry configurable
◆ Current state
volcalc estimates the volatility of chemical compounds from their structure, implementing the SIMPOL.1 group-contribution method and the Meredith et al. variant. Version 2.0.0 severed the package from KEGG: calc_vol() takes .mol file paths or SMILES strings directly, is vectorized over multiple compounds, and the group-contribution maths was split into its own simpol1() function. Work since has been chemistry accuracy and configurability — the full set of SIMPOL.1 functional groups, volatility thresholds for clean atmosphere, polluted atmosphere or soil, user-supplied temperature, and a validate option returning NA when structure parsing looks suspect.
◆ Where it's heading
The arc runs from a script tied to one database toward a general structure-to-volatility tool. Dropping KEGG from the core in 2.0.0, then removing KEGGREST as a dependency entirely in 2.2.0, took the package from volatility for KEGG compounds to volatility for any structure a user can supply. The accompanying manuscript published in 2023, and the changelog since has been careful about coefficient double-counting — amines and amides have each been corrected — which suggests the group definitions are the part under active scrutiny.
◆ Prediction
The smarts_simpol1 dataset added in 2.2.0 documents how functional groups are defined, pointing toward further estimation methods alongside SIMPOL.1 and Meredith; splitting simpol1() out in 2.0.0 was stated to be groundwork for exactly that.
Alternatives to hicp and volcalc
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 hicp or volcalc.
Warp
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Okta
Okta's developer blog is a Cross App Access campaign, now diluted by advocacy-team storytelling.
tealeaves
A leaf-temperature model that finished its job in 2020 and has stayed finished
Infisical
A credential platform assembled two or three pull requests at a time, never a headline
SigNoz
Search without knowing the field — SigNoz keeps lowering the cost of not knowing your schema
See all hicp alternatives → · See all volcalc alternatives →
Recent activity from hicp and volcalc
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 6mo agohicpDefault classification moves to ECOICOP 2, retiring bundle codes ⚡
- 6mo agohicpDownload functions accept all defaults via dots
- 1y agohicp1.0 splits aggregation into tree-following and user-defined halves ⚡
- 1y agovolcalcParsing validation, user-supplied temperature, KEGGREST dropped
- 2y agohicpVignette build fix for one CRAN check flavour
- 2y agohicpGlobal options and a settings argument make COICOP version selectable
- 2y agohicpElementary index weight checks and chain() NA handling fixed
- 2y agovolcalcAuthorship and citation updates
- 2y agovolcalcSMILES input, environment-specific thresholds, missing functional groups
- 2y agovolcalcRebuilt around .mol and SMILES input; SIMPOL.1 split into simpol1() ⚡
- 3y agovolcalcAmines group removed to stop double-counting with primary amines
- 3y agovolcalcbug fix: standard temperature
Frequently asked questions
What is the difference between hicp and volcalc?
They serve adjacent needs but don't currently overlap on shipped themes. hicp and volcalc 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 hicp better than volcalc?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. hicp and volcalc 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 Infra & APIs products to evaluate alongside.
What are the best alternatives to hicp?
Top hicp alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "hicp alternatives" section above for the current picks, or visit /alternatives/hicp for the full list with editorial commentary on each.
What are the best alternatives to volcalc?
Top volcalc alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "volcalc alternatives" section above for the current picks, or visit /alternatives/volcalc for the full list with editorial commentary on each.