RangeMax (DMX)
Returns the upper end of the predicted bucket that is discovered for a discretized column.
Syntax
RangeMax(<scalar column reference>)
Applies To
Scalar columns.
Return Type
A scalar value.
Remarks
The RangeMax function can be used in SELECT DISTINCT FROM <model > (DMX) queries. When used with this type of query, the scalar column reference can contain continuous or discrete columns that are either predictable or input.
When used with SELECT FROM <model> PREDICTION JOIN (DMX), the RangeMin, RangeMid, and RangeMax functions return the actual boundary values of the specified bucket. For example, if you perform a prediction on a discretized column, the query returns the predicted bucket number in the discretized column. The RangeMin, RangeMid, and RangeMax functions describe the bucket that the prediction specifies. When the RangeMax function is used with a PREDICTION JOIN statement, the scalar column reference can only contain discrete, predictable columns.
Examples
The following example returns the minimum, maximum, and average values for the Yearly Income continuous column in the Decision Tree mining model.
SELECT DISTINCT
RangeMin([Yearly Income]) AS [Bucket Minimum],
RangeMid([Yearly Income]) AS [Bucket Average],
RangeMax([Yearly Income]) AS [Bucket Maximum]
FROM [TM Decision Tree]