Class: Quantity

A physical quantity with a value, unit, and optional uncertainty.

URI: https://echemdb.github.io/metadata-schema/svgdigitizer_package/Quantity

         classDiagram
    class Quantity
    click Quantity href "../Quantity/"
      Quantity : calculation
        
      Quantity : comment
        
      Quantity : uncertainty
        
          
    
        
        
        Quantity --> "0..1" Uncertainty : uncertainty
        click Uncertainty href "../Uncertainty/"
    

        
      Quantity : unit
        
      Quantity : value
        
      
    

Slots

Name	Cardinality and Range	Description	Examples
value	0..1 Float	Numerical value of the quantity	0.5
unit	0..1 String	Unit of measurement following astropy’s string notation (e	mol / l, V, mA / cm2
uncertainty	0..1 Uncertainty	Uncertainty information for a measured quantity
comment	0..1 String	Additional notes about the measurement or quantity	Measured at room temperature
calculation	0..1 String	Method or formula used to calculate this quantity	Obtained by multiplying U and I

Usages

used by	used in	type	used
FigureDescription	scanRate	range	Quantity

Identifier and Mapping Information

Schema Source

• from schema: https://echemdb.github.io/metadata-schema/svgdigitizer_package

Mappings

Mapping Type	Mapped Value
self	https://echemdb.github.io/metadata-schema/svgdigitizer_package/Quantity
native	https://echemdb.github.io/metadata-schema/svgdigitizer_package/Quantity

LinkML Source

Direct

```yaml name: Quantity description: A physical quantity with a value, unit, and optional uncertainty. from_schema: https://echemdb.github.io/metadata-schema/svgdigitizer_package attributes: value: name: value description: Numerical value of the quantity. examples: - value: '0.5' from_schema: https://echemdb.github.io/metadata-schema/general/quantity rank: 1000 domain_of: - Quantity - Uncertainty range: float unit: name: unit description: Unit of measurement following astropy's string notation (e.g., 'mol / l', 'V', 'mA / cm2'). Use an empty string for dimensionless quantities. examples: - value: mol / l - value: V - value: mA / cm2 from_schema: https://echemdb.github.io/metadata-schema/general/quantity rank: 1000 domain_of: - Quantity - Uncertainty - DataField range: string uncertainty: name: uncertainty description: Uncertainty information for a measured quantity. from_schema: https://echemdb.github.io/metadata-schema/general/quantity rank: 1000 domain_of: - Quantity range: Uncertainty inlined: true comment: name: comment description: Additional notes about the measurement or quantity. examples: - value: Measured at room temperature from_schema: https://echemdb.github.io/metadata-schema/general/quantity rank: 1000 domain_of: - Quantity - Uncertainty - FigureDescription range: string calculation: name: calculation description: Method or formula used to calculate this quantity. examples: - value: Obtained by multiplying U and I from_schema: https://echemdb.github.io/metadata-schema/general/quantity rank: 1000 domain_of: - Quantity range: string

</details>

### Induced

<details>
```yaml
name: Quantity
description: A physical quantity with a value, unit, and optional uncertainty.
from_schema: https://echemdb.github.io/metadata-schema/svgdigitizer_package
attributes:
  value:
    name: value
    description: Numerical value of the quantity.
    examples:
    - value: '0.5'
    from_schema: https://echemdb.github.io/metadata-schema/general/quantity
    rank: 1000
    alias: value
    owner: Quantity
    domain_of:
    - Quantity
    - Uncertainty
    range: float
  unit:
    name: unit
    description: Unit of measurement following astropy's string notation (e.g., 'mol
      / l', 'V', 'mA / cm2'). Use an empty string for dimensionless quantities.
    examples:
    - value: mol / l
    - value: V
    - value: mA / cm2
    from_schema: https://echemdb.github.io/metadata-schema/general/quantity
    rank: 1000
    alias: unit
    owner: Quantity
    domain_of:
    - Quantity
    - Uncertainty
    - DataField
    range: string
  uncertainty:
    name: uncertainty
    description: Uncertainty information for a measured quantity.
    from_schema: https://echemdb.github.io/metadata-schema/general/quantity
    rank: 1000
    alias: uncertainty
    owner: Quantity
    domain_of:
    - Quantity
    range: Uncertainty
    inlined: true
  comment:
    name: comment
    description: Additional notes about the measurement or quantity.
    examples:
    - value: Measured at room temperature
    from_schema: https://echemdb.github.io/metadata-schema/general/quantity
    rank: 1000
    alias: comment
    owner: Quantity
    domain_of:
    - Quantity
    - Uncertainty
    - FigureDescription
    range: string
  calculation:
    name: calculation
    description: Method or formula used to calculate this quantity.
    examples:
    - value: Obtained by multiplying U and I
    from_schema: https://echemdb.github.io/metadata-schema/general/quantity
    rank: 1000
    alias: calculation
    owner: Quantity
    domain_of:
    - Quantity
    range: string