StatisticalVariable
StatisticalVariable represents any type of statistical metric that can be measured at a place and time. The usage pattern for StatisticalVariable is typically expressed using Observation with an explicit populationType, which is a type, typically drawn from Schema.org. Each StatisticalVariable is marked as a ConstraintNode, meaning that some properties (those listed using constraintProperty) serve in this setting solely to define the statistical variable rather than literally describe a specific person, place or thing. For example, a StatisticalVariable Median_Height_Person_Female representing the median height of women, could be written as follows: the population type is Person; the measuredProperty height; the statType median; the gender Female. It is important to note that there are many kinds of scientific quantitative observation which are not fully, perfectly or unambiguously described following this pattern, or with solely Schema.org terminology. The approach taken here is designed to allow partial, incremental or minimal description of StatisticalVariables, and the use of detailed sets of entity and property IDs from external repositories. The measurementMethod, unitCode and unitText properties can also be used to clarify the specific nature and notation of an observed measurement.
Extends: ConstraintNode
Properties
| Property | Expected Type | Description |
|---|---|---|
| measuredProperty | Property | The measuredProperty of an Observation, typically via its StatisticalVariable. There are various kinds of applicabl... |
| measurementDenominator | StatisticalVariable | Identifies the denominator variable when an observation represents a ratio or percentage. |
| measurementMethod | DefinedTerm, Text, MeasurementMethodEnum, URL | A subproperty of measurementTechnique that can be used for specifying specific methods, in particular via [MeasurementMethodEnum](https://schema.org.ai... |
| measurementQualifier | Enumeration | Provides additional qualification to an observation. For example, a GDP observation measures the Nominal value. |
| measurementTechnique | DefinedTerm, MeasurementMethodEnum, Text, URL | A technique, method or technology used in an Observation, StatisticalVariable or [Dataset](https://schema.org.ai/Da... |
| populationType | Class | Indicates the populationType common to all members of a StatisticalPopulation or all cases within the scope of a [StatisticalVariable](https://schema.... |
| statType | URL, Property, Text | Indicates the kind of statistic represented by a StatisticalVariable, e.g. mean, count etc. The value of statType is a property, either from within Sche... |
[ConstraintNode](https://schema.org.ai/ConstraintNode) Properties
| Property | Expected Type | Description |
|---|---|---|
| constraintProperty | URL, Property | Indicates a property used as a constraint. For example, in the definition of a StatisticalVariable. The value is a property, either from within Schema.o... |
| numConstraints | Integer | Indicates the number of constraints property values defined for a particular ConstraintNode such as [StatisticalVariable](https://schema.org.ai/StatisticalVa... |
[Thing](https://schema.org.ai/Thing) Properties
| Property | Expected Type | Description |
|---|---|---|
| additionalType | Text, URL | An additional type for the item, typically used for adding more specific types from external vocabularies in microdata syntax. This is a relationship between something and a class that the thing is... |
| alternateName | Text | An alias for the item. |
| description | Text, TextObject | A description of the item. |
| disambiguatingDescription | Text | A sub property of description. A short description of the item used to disambiguate from other, similar items. Information from other properties (in particular, name) may be necessary for the descr... |
| identifier | URL, Text, PropertyValue | The identifier property represents any kind of identifier for any kind of Thing, such as ISBNs, GTIN codes, UUIDs etc. Schema.org provides dedicated properties for re... |
| image | ImageObject, URL | An image of the item. This can be a URL or a fully described ImageObject. |
| mainEntityOfPage | CreativeWork, URL | Indicates a page (or other CreativeWork) for which this thing is the main entity being described. See background notes for details. |
| name | Text | The name of the item. |
| potentialAction | Action | Indicates a potential Action, which describes an idealized action in which this thing would play an 'object' role. |
| sameAs | URL | URL of a reference Web page that unambiguously indicates the item's identity. E.g. the URL of the item's Wikipedia page, Wikidata entry, or official website. |
| subjectOf | Event, CreativeWork | A CreativeWork or Event about this Thing. |
| url | URL | URL of the item. |