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Cluster

Cluster (DMX)

Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).

Returns the cluster that is most likely to contain the input case.

Cluster()

This function can be used only if the underlying data mining model supports clustering.

The Cluster function does not require parameters.

The Cluster function returns a scalar value of a cluster name. However, if you use this function as an argument of another function, you must regard it as a <cluster column reference>.

Cluster can also be used as a <cluster column reference> for a PredictHistogram function.

The following example uses a singleton query with the PredictHistogram (DMX) and Cluster functions to return the distance of the individual case from each cluster of the TM Clustering mining model and the probability that the individual case will exist in each cluster.

SELECT
  PredictHistogram(Cluster())
FROM
  [TM Clustering]
  NATURAL PREDICTION JOIN
(SELECT 28 AS [Age],
  '2-5 Miles' AS [Commute Distance],
  'Graduate Degree' AS [Education],
  0 AS [Number Cars Owned],
  0 AS [Number Children At Home]) AS t

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