MOVINGAVERAGE

Articol
05/20/2024

Applies to: Calculated column Calculated table Measure Visual calculation

Returns a moving average calculated along the given axis of the visual matrix. That is, the average of the given column calculated over the last <windowSize> rows.

Syntax

MOVINGAVERAGE ( <column>, <windowSize>[, <includeCurrent>][, <axis>][, <blanks>][, <reset>] )

Parameters

Term	Definition
column	The column that provides the value for each element.
windowSize	The number of rows to include in the calculation. Must be a constant value.
includeCurrent	(Optional) A logical value specifying whether or not to include the current row in the range. Default value is True.
axis	(Optional) An axis reference, the direction along which the moving average will be calculated.
blanks	(Optional) An enumeration that defines how to handle blank values when sorting. The supported values are: DEFAULT (the default value), where the behavior for numerical values is blank values are ordered between zero and negative values. The behavior for strings is blank values are ordered before all strings, including empty strings. FIRST, blanks are always ordered on the beginning, regardless of ascending or descending sorting order. LAST, blanks are always ordered on the end, regardless of ascending or descending sorting order.
reset	(Optional) Indicates if the calculation resets, and at which level of the visual shape's column hierarchy. Accepted values are: NONE, LOWESTPARENT, HIGHESTPARENT, or an integer. The behavior depends on the integer sign: - If zero or omitted, the calculation does not reset. Equivalent to NONE. - If positive, the integer identifies the column starting from the highest, independent of grain. HIGHESTPARENT is equivalent to 1. - If negative, the integer identifies the column starting from the lowest, relative to the current grain. LOWESTPARENT is equivalent to -1.

Return value

A scalar value, the moving average at the current element of the axis.

Remarks

This function can be used in visual calculations only.

The <includeCurrent>, <axis>, <blanks> and <reset> parameters can be omitted.

Example 1

Given a table that summarizes the total sales for each product category and calendar month, the following DAX query adds a column with the average of total sales for that category in the last 6 months:

AvgSalesLast6Months = MOVINGAVERAGE([SalesAmount], 6, Rows)

The screenshot below shows the visual matrix and the visual calculation expression:

DAX visual calculation

Example 2

Given the same table, the following DAX query adds a column with the average of total sales for that category in the previous 12 months (not including the current month):

AvgSalesPrev12Months = MOVINGAVERAGE([SalesAmount], 12, FALSE, Rows, KEEP)

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