| description | title |
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Learn more about: AVERAGEX |
AVERAGEX function (DAX) | Microsoft Docs |
[!INCLUDEapplies-to-measures-columns-tables-visual-calculations]
Calculates the average (arithmetic mean) of a set of expressions evaluated over a table.
AVERAGEX(<table>,<expression>)
| Term | Definition |
|---|---|
| table | Name of a table, or an expression that specifies the table over which the aggregation can be performed. |
| expression | An expression with a scalar result, which will be evaluated for each row of the table in the first argument. |
A decimal number.
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The AVERAGEX function enables you to evaluate expressions for each row of a table, and then take the resulting set of values and calculate its arithmetic mean. Therefore, the function takes a table as its first argument, and an expression as the second argument.
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In all other respects, AVERAGEX follows the same rules as AVERAGE. You cannot include non-numeric or null cells. Both the table and expression arguments are required.
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When there are no rows to aggregate, the function returns a blank. When there are rows, but none of them meet the specified criteria, then the function returns 0.
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[!INCLUDE function-not-supported-in-directquery-mode]
The following example calculates the average freight and tax on each order in the InternetSales table, by first summing Freight plus TaxAmt in each row, and then averaging those sums.
= AVERAGEX(InternetSales, InternetSales[Freight]+ InternetSales[TaxAmt])
If you use multiple operations in the expression used as the second argument, you must use parentheses to control the order of calculations. For more information, see DAX Syntax Reference.