Computes the rolling minimum of values forward or backward of the current row within the specified column. Inputs can be Integer, Decimal, or Datetime.

For more information on a non-rolling version of this function, see MIN Function.

Column example:

rollingmin(myCol)

Output: Returns the rolling minimum of all values in the myCol column.

Rows before example:

rollingmin(myNumber, 3)

Output: Returns the rolling minimum of the current row and the three previous row values in the myNumber column.

Rows before and after example:

rollingmin(myNumber, 3, 2)

Output: Returns the rolling minimum of the three previous row values, the current row value, and the two rows after the current one in the myNumber column.     

rollingmin(col_ref, rowsBefore_integer, rowsAfter_integer) order: order_col [group: group_col]


ArgumentRequired?Data TypeDescription
col_refYstringName of column whose values are applied to the function
rowsBefore_integerNintegerNumber of rows before the current one to include in the computation
rowsAfter_integerNintegerNumber of rows after the current one to include in the computation

For more information on the order and group parameters, see Window Transform.

col_ref

Name of the column whose values are used to compute the function. Inputs must be Integer, Decimal, or Datetime values.

NOTE: If the input is in Datetime type, the output is in unixtime format. You can wrap these outputs in the DATEFORMAT function to generate the results in the appropriate Datetime format. See DATEFORMAT Function.

Required?Data TypeExample Value
YesString (column reference to Integer or Decimal values)myColumn

rowsBefore_integer, rowsAfter_integer

Integers representing the number of rows before or after the current one from which to compute the rolling function, including the current row. For example, if the first value is 5, the current row and the five rows before it are used in the computation. Negative values for k compute the rolling average from rows preceding the current one.

Required?Data TypeExample Value
NoInteger4

Example - Rolling computations for racing splits