# DRETAGDOCCLUSTERS

Allows you to tag documents that are conceptually similar. You can use this index action to group duplicate documents together.

## Example

    http://12.3.4.56:9101/DRETAGDOCCLUSTERS?TagField=XML&MinScore=50&MinID=100&MaxID=2500

This index action tags documents matching the MinScore threshold of 50 as XML.

## Required Parameters

The following action parameters are required.

Parameter | Description
--- | ---
MinScore | The matching threshold to determine whether a document belongs to a cluster.
TagField | The full field name that contains document tags.

## Optional Parameters

This action accepts the following optional parameters.

Parameter | Description
--- | ---
CheckSumDBs | The names of databases that you can checksum match against.
CheckSumField | A reference field to use to determine whether a document is an exact match of another document.
ClusterDBs | The names of databases that you can cluster against.
DatabaseMatch | The names of databases that contain documents to tag.
MaxID | The last document ID to tag.
MinID | The first document ID to tag.
RelevanceField | The full field name that holds the relevance score of the document to its cluster.
TaggedDBName | The database to which IDOL Server moves documents and from which it retrieves tags.
TagSourceField | The full field name to use as the source of the TagField value.

This index action accepts the following standard index action parameters.

Parameter | Description
--- | ---
IgnoreMaxPendingItems | Whether to ignore the IndexQueueMaxPendingItems limit for this index action.
IndexUID | An identification code for any document tracking events.
NoArchive | Turn off configured archiving for the index action.
Priority | The priority for the index job.

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