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An analysis dataset that follows the ADaM Basic Data Structure (BDS), BDS (i.e., an analysis dataset of the BDS class, ) can contain multiple analysis parameters. In a BDS analysis dataset, the variable PARAM contains a unique description for every analysis parameter included in that dataset. The variable PARAMCD contains the short name of the analysis parameter in PARAM, with a one-to-one mapping between the two 2 variables. Each value of PARAM identifies a set of one 1 or more rows in the dataset.

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A particular value of PARAMCD in the PARAMETER IDENTIFIER for a variable indicates that the specified metadata for that variable should be considered the metadata applicable to the particular PARAMCD, overriding the specified *DEFAULT* metadata, if any.

How to capture analysis metadata is described in the Define-XML specification.


Metadataspec

Num

AnalysisVariable Metadata Field

Description

1

PARAMETER IDENTIFIER

Contains either:

  • the value of PARAMCD that identifies the analysis parameter to which the variable metadata applies; or
  • controlled terminology to indicate groupings of analysis parameters:

*ALL* - Used when the variable metadata applies to all analysis parameters in the dataset.

*DEFAULT* - Used when the variable metadata applies to all analysis parameters in the dataset except for those specifically listed within the metadata.

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