Unit variability factors data formats¶
Unit variability factors¶
Unit variability factors specify the unit-to-unit variation of substance concentrations on foods. Unit variability factors are described by a single unit variability factors table.
Unit variability factors¶
Unit variability factors are defined for a food, and may possibly also be specified for a specific substance and/or processing type. The unit variability factors are linked to the foods by means of the food code (idFood). Unit variability factors can be specified as unit variability factors (P97.5/mean) or as coefficients of variation of a statistical distribution.
Table aliases: UnitVariabilityFactors, UnitVariabilityFactor, VariabilityFactor, VariabilityFactors, VariabilityProcCompProd, UnitVariability, RawUnitVariabilityFactors.
| Name | Type | Description | Aliases | Required |
|---|---|---|---|---|
idFood |
AlphaNumeric(50) |
The food code. |
idFood, FoodId, Food |
Yes |
idSubstance |
AlphaNumeric(50) |
The code of the substance. |
idSubstance, SubstanceId, SubstanceCode, Substance, idCompound, CompoundId, CompoundCode, Compound |
No |
idProcessingType |
AlphaNumeric(50) |
The processing type code. |
idProcessingType, ProcessingTypeId, ProcessingType, ProcType |
No |
Factor |
Numeric |
The variability factor. |
Factor, VarFac, VariabilityFactor |
No |
UnitsInCompositeSample |
Numeric |
The number of units in the composite sample. |
UnitsInCompositeSample, NoUnitComp |
Yes |
Coefficient |
Numeric |
The coefficient of variation. |
Coefficient, VariabilityCoefficient, CoefVar, VarCoef |
No |