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| Metadataspec |
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| Variables | Record Grouping | Purpose of Grouping |
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STUDYID | By Study | All records with the same STUDYID value are a group of records that describe that study. | DOMAIN | By Domain | All records with the same DOMAIN value are a group of records that describe that domain. | --CAT, --SCAT | Across Subjects | --CAT and --SCAT values subset groups of tests within a domain and apply to all subjects within the domain. | USUBJID | By Subject | All records with the same USUBJID value are a group of records that describe that subject. | --GRPID | For Subjects | All records in the same domain with the same --GRPID value are a group of records within USUBJID. |
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How Grouping Variables Group Data
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