DimensionAttribute.DiscretizationMethod Property
Definition
Important
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Gets or sets the method to be used for discretization.
public Microsoft.AnalysisServices.DiscretizationMethod DiscretizationMethod { get; set; }member this.DiscretizationMethod : Microsoft.AnalysisServices.DiscretizationMethod with get, setPublic Property DiscretizationMethod As DiscretizationMethodProperty Value
A DiscretizationMethod object containing the method to be used for discretization.
Remarks
The value of DiscretizationMethod determines how values for the DimensionAttribute are discretized, or organized into a specific set of groups. This property can be set to the following values: Value Description ----- ----------- Automatic Equivalent to the AUTOMATIC discretization method for mining structure columns. EqualAreas Equivalent to the EQUAL_AREAS discretization method for mining structure columns. Clusters Equivalent to the CLUSTERS discretization method for mining structure columns. Thresholds Equivalent to the THRESHOLDS discretization method for mining structure columns. EqualRanges Equivalent to the EQUAL_RANGES discretization method for mining structure columns.
For data mining, the method that is used to discretize data can be different depending on whether your data is relational or stored in an OLAP dimension. For OLAP data mining, the algorithm automatically computes the number of buckets to generate, by using the following equation, where n is the number of distinct values of data in the column: Number of Buckets = sqrt(n) If you do not want Analysis Services to calculate the number of buckets, you can use the?DiscretizationBucketCount property to manually specify the number of buckets.
Note: In a relational data mining solution, you specify the number of buckets by setting the value of the DiscretizationBucketCount property. This property defaults to 5.
For more information about discretization methods in data mining solutions, see Discretization Methods (Data Mining).