Slot: Reason Uncertainty Units Are Missing (per_value_uncertainty_units_ucum_missing_reason)

Reason per_value_uncertainty_units_ucum is null.

Tier: optional

Why this slot matters

Distinguishes "there is no uncertainty column, so units genuinely do not apply" from an accidental omission. Without the reason a blank units field is ambiguous and completeness checks cannot tell a legitimate not-applicable from a missing entry.

In plain terms

If the uncertainty-units field is blank, this explains why — often because there is no uncertainty column at all, so there is nothing to put units on. It stops a reader from wondering whether the units were simply forgotten.

URI: envar:slot/per_value_uncertainty_units_ucum_missing_reason

Applicable Classes

Name	Description	Modifies Slot
Uncertainty	Uncertainty and quality character of a value series: per-value uncertainty ty...	no

Properties

Type and Range

Property	Value
Range	MissingReasonEnum
Domain Of	Uncertainty

Cardinality and Requirements

Property	Value

Examples

Value
not_applicable

Identifier and Mapping Information

Annotations

property	value
tier	optional
justification	Distinguishes "there is no uncertainty column, so units genuinely do not apply" from an accidental omission. Without the reason a blank units field is ambiguous and completeness checks cannot tell a legitimate not-applicable from a missing entry.
explanation	If the uncertainty-units field is blank, this explains why — often because there is no uncertainty column at all, so there is nothing to put units on. It stops a reader from wondering whether the units were simply forgotten.

Schema Source

• from schema: https://w3id.org/linkml/microschemas/envar

Mappings

Mapping Type	Mapped Value
self	envar:per_value_uncertainty_units_ucum_missing_reason
native	envar:per_value_uncertainty_units_ucum_missing_reason

LinkML Source

name: per_value_uncertainty_units_ucum_missing_reason
annotations:
  tier:
    tag: tier
    value: optional
  justification:
    tag: justification
    value: Distinguishes "there is no uncertainty column, so units genuinely do not
      apply" from an accidental omission. Without the reason a blank units field is
      ambiguous and completeness checks cannot tell a legitimate not-applicable from
      a missing entry.
  explanation:
    tag: explanation
    value: If the uncertainty-units field is blank, this explains why — often because
      there is no uncertainty column at all, so there is nothing to put units on.
      It stops a reader from wondering whether the units were simply forgotten.
description: Reason `per_value_uncertainty_units_ucum` is null.
title: Reason Uncertainty Units Are Missing
examples:
- value: not_applicable
  description: No per-value uncertainty column exists, so units do not apply.
from_schema: https://w3id.org/linkml/microschemas/envar
rank: 1000
domain_of:
- Uncertainty
range: MissingReasonEnum