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Slot: Reason Equation Variant Is Missing (equation_variant_missing_reason)

Reason equation_variant is null.

Tier: optional

Why this slot matters

Distinguishes "no equation variant exists for this metric" from "the variant was used but never captured" — the first is fine, the second means the record is unusable for cross-study comparison and someone should go back to the producer.

In plain terms

A blank field is ambiguous: it could mean the thing does not exist, or that nobody wrote it down. This companion field says which one it is.

URI: envar:slot/equation_variant_missing_reason

Applicable Classes

Name Description Modifies Slot
DerivedHeatMetric Methodology slots specific to derived heat metrics (WBGT, Heat Index, UTCI, a... no

Properties

Type and Range

Property Value
Range MissingReasonEnum
Domain Of DerivedHeatMetric

Cardinality and Requirements

Property Value

Examples

Value
not_provided_by_source

Identifier and Mapping Information

Annotations

property value
tier optional
justification Distinguishes "no equation variant exists for this metric" from "the variant was used but never captured" — the first is fine, the second means the record is unusable for cross-study comparison and someone should go back to the producer.
explanation A blank field is ambiguous: it could mean the thing does not exist, or that nobody wrote it down. This companion field says which one it is.

Schema Source

Mappings

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

LinkML Source

name: equation_variant_missing_reason
annotations:
  tier:
    tag: tier
    value: optional
  justification:
    tag: justification
    value: Distinguishes "no equation variant exists for this metric" from "the variant
      was used but never captured" — the first is fine, the second means the record
      is unusable for cross-study comparison and someone should go back to the producer.
  explanation:
    tag: explanation
    value: 'A blank field is ambiguous: it could mean the thing does not exist, or
      that nobody wrote it down. This companion field says which one it is.'
description: Reason `equation_variant` is null.
title: Reason Equation Variant Is Missing
examples:
- value: not_provided_by_source
from_schema: https://w3id.org/linkml/microschemas/envar
rank: 1000
domain_of:
- DerivedHeatMetric
range: MissingReasonEnum