Class: Statistic

A test statistic and its degrees of freedom. Statistic values -- peak magnitudes, p-values, cluster extents -- belong to the reported coordinates.

URI: neurostudy_ex:Statistic

 classDiagram
    class Statistic
    click Statistic href "../Statistic/"
      Statistic : degrees_of_freedom_denominator





        Statistic --> "0..1" ExtractedNumber : degrees_of_freedom_denominator
        click ExtractedNumber href "../ExtractedNumber/"



      Statistic : degrees_of_freedom_numerator





        Statistic --> "0..1" ExtractedNumber : degrees_of_freedom_numerator
        click ExtractedNumber href "../ExtractedNumber/"



      Statistic : family





        Statistic --> "1" ExtractedStatisticFamily : family
        click ExtractedStatisticFamily href "../ExtractedStatisticFamily/"

Slots

Name	Cardinality and Range	Description	Inheritance
family	1 ExtractedStatisticFamily	The statistic used, independent of the thresholding procedure	direct
degrees_of_freedom_numerator	0..1 ExtractedNumber	Numerator degrees of freedom, normally populated only for f and likelihood_ra...	direct
degrees_of_freedom_denominator	0..1 ExtractedNumber	Denominator degrees of freedom, used alone for t, correlation, and chi_square	direct

Usages

used by	used in	type	used
Effect	statistic	range	Statistic

Identifier and Mapping Information

Schema Source

• from schema: https://neurostuff.org/schemas/neuroimaging-study-extraction

Mappings

Mapping Type	Mapped Value
self	neurostudy_ex:Statistic
native	neurostudy_ex:Statistic

LinkML Source

Direct

name: Statistic
description: A test statistic and its degrees of freedom. Statistic values -- peak
  magnitudes, p-values, cluster extents -- belong to the reported coordinates.
from_schema: https://neurostuff.org/schemas/neuroimaging-study-extraction
rank: 1000
attributes:
  family:
    name: family
    description: The statistic used, independent of the thresholding procedure. A
      t-test corrected by permutation is still a `t`.
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-extraction/analysis
    rank: 1000
    domain_of:
    - Statistic
    - Measure
    range: ExtractedStatisticFamily
    required: true
  degrees_of_freedom_numerator:
    name: degrees_of_freedom_numerator
    description: Numerator degrees of freedom, normally populated only for f and likelihood_ratio.
      A single-degree-of-freedom statistic leaves this unset, since t(151) is F(1,151).
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-extraction/analysis
    rank: 1000
    domain_of:
    - Statistic
    range: ExtractedNumber
  degrees_of_freedom_denominator:
    name: degrees_of_freedom_denominator
    description: Denominator degrees of freedom, used alone for t, correlation, and
      chi_square. Both are unset for z. Float, so corrected degrees of freedom such
      as a Greenhouse-Geisser adjustment can be recorded as reported.
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-extraction/analysis
    rank: 1000
    domain_of:
    - Statistic
    range: ExtractedNumber

Induced

name: Statistic
description: A test statistic and its degrees of freedom. Statistic values -- peak
  magnitudes, p-values, cluster extents -- belong to the reported coordinates.
from_schema: https://neurostuff.org/schemas/neuroimaging-study-extraction
rank: 1000
attributes:
  family:
    name: family
    description: The statistic used, independent of the thresholding procedure. A
      t-test corrected by permutation is still a `t`.
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-extraction/analysis
    rank: 1000
    owner: Statistic
    domain_of:
    - Statistic
    - Measure
    range: ExtractedStatisticFamily
    required: true
  degrees_of_freedom_numerator:
    name: degrees_of_freedom_numerator
    description: Numerator degrees of freedom, normally populated only for f and likelihood_ratio.
      A single-degree-of-freedom statistic leaves this unset, since t(151) is F(1,151).
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-extraction/analysis
    rank: 1000
    owner: Statistic
    domain_of:
    - Statistic
    range: ExtractedNumber
  degrees_of_freedom_denominator:
    name: degrees_of_freedom_denominator
    description: Denominator degrees of freedom, used alone for t, correlation, and
      chi_square. Both are unset for z. Float, so corrected degrees of freedom such
      as a Greenhouse-Geisser adjustment can be recorded as reported.
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-extraction/analysis
    rank: 1000
    owner: Statistic
    domain_of:
    - Statistic
    range: ExtractedNumber