Lag

An observation period that is offset from a Calculation Period.

Nested view
Tree view

Field	Type	Description	Print form title	FFSM title	Properties	Conditions
lagDuration	Period	The period during which observations will be made. If a firstObservationDateOffset is specified, the observation period will start the specified interval prior to each Calculation Period - i.e. if the firstObservationDateOffset is 4 months and the lagDuration is 3 months, observations will be taken in months 4,3 and 2 (but not 1) prior to each Calculation Period. If no firstObservationDate is specified, the observation period will end immediately preceding each Calculation Period.	Lag duration.		0-1, mre
firstObservationDateOffset	Period	The interval between the start of each lagDuration and the start of each respective calculation period.	First observation date offset.		0-1
@id	xsd:ID				1-1, ncf

Collapse All | Expand All

Lag

lagDuration(Period)

The period during which observations will be made. If a firstObservationDateOffset is specified, the observation period will start the specified interval prior to each Calculation Period - i.e. if the firstObservationDateOffset is 4 months and the lagDuration is 3 months, observations will be taken in months 4,3 and 2 (but not 1) prior to each Calculation Period. If no firstObservationDate is specified, the observation period will end immediately preceding each Calculation Period.

periodMultiplier(integer)

	A time period multiplier, e.g. 1, 2 or 3 etc. A negative value can be used when specifying an offset relative to another date, e.g. -2 days.

period(PeriodEnum)

	A time period, e.g. a day, week, month or year of the stream. If the periodMultiplier value is 0 (zero) then period must contain the value D (day).
	D;W;M;Y;

firstObservationDateOffset(Period)

The interval between the start of each lagDuration and the start of each respective calculation period.

periodMultiplier(integer)

	A time period multiplier, e.g. 1, 2 or 3 etc. A negative value can be used when specifying an offset relative to another date, e.g. -2 days.

period(PeriodEnum)

	A time period, e.g. a day, week, month or year of the stream. If the periodMultiplier value is 0 (zero) then period must contain the value D (day).
	D;W;M;Y;