<xsd:complexType name="Lag">
<xsd:annotation>
<xsd:documentation xml:lang="en">An observation period that is offset from a Calculation Period.</xsd:documentation>
</xsd:annotation>
<xsd:sequence>
<xsd:element name="lagDuration" type="Period" minOccurs="0">
<xsd:annotation>
<xsd:documentation xml:lang="en">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.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="firstObservationDateOffset" type="Period" minOccurs="0">
<xsd:annotation>
<xsd:documentation xml:lang="en">The interval between the start of each lagDuration and the start of each respective calculation period.</xsd:documentation>
</xsd:annotation>
</xsd:element>
</xsd:sequence>
<xsd:attribute name="id" type="xsd:ID" />
</xsd:complexType>
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