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Units Type

A key that indicates a data value transformation.

Union cases

Union case Description

Change

Full Usage: Change

Observation(t) - Observation(t-1)

ChangeFromYearAgo

Full Usage: ChangeFromYearAgo

Observation(t) - Observation(t-#ObsPerYear)

CompoundedAnnualRateofChange

Full Usage: CompoundedAnnualRateofChange

(((Observation(t)/Observation(t-1)) ** (#ObsPerYear)) - 1) * 100

ContinuouslyCompoundedAnnualRateofChange

Full Usage: ContinuouslyCompoundedAnnualRateofChange

((ln(Observation(t)) - ln(Observation(t-1))) * 100) * #ObsPerYear

ContinuouslyCompoundedRateofChange

Full Usage: ContinuouslyCompoundedRateofChange

(ln(Observation(t)) - ln(Observation(t-1))) * 100

Levels

Full Usage: Levels

Observation(t), default.

NaturalLog

Full Usage: NaturalLog

ln(Observation(t))

PercentChange

Full Usage: PercentChange

((Observation(t)/Observation(t-1)) - 1) * 100

PercentChangeFromYearAgo

Full Usage: PercentChangeFromYearAgo

((Observation(t)/Observation(t-#ObsPerYear)) - 1) * 100

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