Wikidata:Property proposal/Wolfram Language quantity ID

Wolfram Language quantity ID edit

Originally proposed at Wikidata:Property proposal/Authority control

Done: Wolfram Language quantity ID (P7431) (Talk and documentation)

Description	identifier for a (physical, chemical, ...) quantity in the Wolfram Language
Represents	physical quantity (Q107715)
Data type	External identifier
Domain	item, property, physical quantity (Q107715)
Allowed values	`[a-zA-Z]+`
Example 1	length (Q36253) -> Length
Example 2	wavenumber (Q192510) -> Wavenumber
Example 3	heat capacity (Q179388) -> HeatCapacity
Example 4	specific heat capacity (Q487756) -> SpecificHeatCapacity
Source	https://reference.wolfram.com/language/ref/QuantityVariable
Planned use	Alignment of the Wolfram Language (Q15241057) and Wikidata quantity ontologies will allow consistency checks for the benefit of both. For instance, a statement joule (Q25269)measured physical quantity (P111)energy (Q11379) can be compared with `QuantityVariableCanonicalUnit["Energy"]` -> `"Joules"`.
Number of IDs in source	Autocompletion suggests something of the order of 1000.
Expected completeness	eventually complete (Q21873974)
See also	Wolfram Language unit code (P7007), Wolfram Language entity code (P4839)

Motivation edit

Align Wolfram Language and Wikidata quantity, unit and property ontologies. This will help improve consistency in both ontologies. One indicator of whether a Wolfram Language property is compatible with a Wikidata property is its physical quantity, for instance: EntityProperty["PhysicalSystem", "Lagrangian"]["PhysicalQuantity"] -> QuantityVariable["Energy","Energy"] Toni 001 (talk) 10:23, 7 October 2019 (UTC)[reply]

Discussion edit

"ID" vs. "code": This property is about the identifiers, that is, strings, as accepted in the second argument of the function QuantityVariable. Users can "define" their own quantities by forming algebraic combination of quantities, say "Mass" / "Time". Those expressions could warrant an additional property "Wolfram Language quantity code", but I'm not proposing that at the moment as a need has not come up yet. Toni 001 (talk) 10:32, 7 October 2019 (UTC)[reply]

Comment Would this be a valid formatter for this property? http://scienceworld.wolfram.com/physics/$1.html? If not is there one? I think if this is somehow associate with wolfram we need to be able to verify it somehow - how do I know if the value entered is valid? Iwan.Aucamp (talk) 18:46, 7 October 2019 (UTC)[reply]
- @Toni 001: Comment maybe this is a better formatter url https://reference.wolfram.com/system-modeler/libraries/Modelica/Modelica.SIunits.$1.html - but it is not valid for all examples. Iwan.Aucamp (talk) 18:49, 7 October 2019 (UTC)[reply]

@Iwan.Aucamp: To my knowledge there are no (official) URLs for those quantities. Their existence and correctness can be verified by using them in the language: Interesting functions to apply to a quantity include QuantityVariableCanonicalUnit or QuantityVariableDimensions - if the result is not DimensionlessUnit or {}, respectively, then the quantity "exists" (but there are of course some valid dimensionless quantities, say VolumeFraction). Toni 001 (talk) 23:01, 7 October 2019 (UTC)[reply]

Support Dhx1 (talk) 13:49, 8 October 2019 (UTC)[reply]
Support--予弦 14:48, 14 October 2019 (UTC)[reply]

@Toni 001, Iwan.Aucamp, Dhx1: Done: Wolfram Language quantity ID (P7431). − Pintoch (talk) 09:58, 15 October 2019 (UTC)[reply]