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Slot: Reason Cross-Validation R² Is Missing (exposure_model_cross_validation_r2_missing_reason)

Reason exposure_model_cross_validation_r2 is null.

Tier: optional

Why this slot matters

Separates "the producer never published a skill score" from "we forgot to record it". Without this, a missing R² is ambiguous and reviewers cannot tell an undocumented model from sloppy metadata.

In plain terms

If the quality score is blank, this slot says why — for example, some well-known products simply never publish one. It turns an empty field into an honest answer.

URI: envar:slot/exposure_model_cross_validation_r2_missing_reason

Applicable Classes

Name Description Modifies Slot
ExposureModel The model class that produced the values (interpolation, reanalysis, ML, stat... no

Properties

Type and Range

Property Value
Range MissingReasonEnum
Domain Of ExposureModel

Cardinality and Requirements

Property Value

Examples

Value
not_provided_by_source

Identifier and Mapping Information

Annotations

property value
tier optional
justification Separates "the producer never published a skill score" from "we forgot to record it". Without this, a missing R² is ambiguous and reviewers cannot tell an undocumented model from sloppy metadata.
explanation If the quality score is blank, this slot says why — for example, some well-known products simply never publish one. It turns an empty field into an honest answer.

Schema Source

Mappings

Mapping Type Mapped Value
self envar:exposure_model_cross_validation_r2_missing_reason
native envar:exposure_model_cross_validation_r2_missing_reason

LinkML Source

name: exposure_model_cross_validation_r2_missing_reason
annotations:
  tier:
    tag: tier
    value: optional
  justification:
    tag: justification
    value: Separates "the producer never published a skill score" from "we forgot
      to record it". Without this, a missing R² is ambiguous and reviewers cannot
      tell an undocumented model from sloppy metadata.
  explanation:
    tag: explanation
    value: If the quality score is blank, this slot says why — for example, some well-known
      products simply never publish one. It turns an empty field into an honest answer.
description: Reason `exposure_model_cross_validation_r2` is null.
title: Reason Cross-Validation R² Is Missing
examples:
- value: not_provided_by_source
  description: Daymet does not publish a cross-validation R²
from_schema: https://w3id.org/linkml/microschemas/envar
rank: 1000
domain_of:
- ExposureModel
range: MissingReasonEnum