Populations and Controls

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SEARCH and FILE Controls

Use the SEARCH and FILE controls to specify the field names and their offset and length pairs in the scatter or gather format for the data in the

Search Data

and

File Data

fields. If you do not specify the offset and length pairs for the field names, SSA-NAME3 considers the data in the tagged data format.

You can extend any of the key fields and set the weight for the extended fields. The extended fields use the algorithm of the key fields. Use the extended fields to override the weight of the key fields in the run time. You can also specify the type of matching to perform between the data in the

Search Data

and

File Data

fields.

You can use the following matching types:

Exact matching. Returns 100% score only if the search data values match with the file data values.

Inexact matching. Returns 100% score if the search data values do not match with the file data values.

Range matching. Returns 100% score if the search data and file data values are within the specified range.

If you specify different matching types in the SEARCH and FILE parameters, the matching type that you specify in the SEARCH parameter takes precedence.

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