AVERAGEA Function (DAX)
Returns the average (arithmetic mean) of the values in a column. Handles text and nonnumeric values.
Syntax
AVERAGEA(<column>)
Parameters
Term 
Definition 

column 
A column that contains the values for which you want the average. 
Return Value
A decimal number.
Remarks
The AVERAGEA function takes a column and averages the numbers in it, but also handles nonnumeric data types according to the following rules:
Values that evaluates to TRUE count as 1.
Values that evaluate to FALSE count as 0 (zero).
Values that contain nonnumeric text count as 0 (zero).
Empty text ("") counts as 0 (zero).
If you do not want to include logical values and text representations of numbers in a reference as part of the calculation, use the AVERAGE function.
Whenever there are no rows to aggregate, the function returns a blank. However, if there are rows, but none of them meet the specified criteria, the function returns 0. Microsoft Excel also returns a zero if no rows are found that meet the conditions.
Example
The following example returns the average of nonblank cells in the referenced column, given the following table. If you used the AVERAGE function, the mean would be 21/2; with the AVERAGEA function, the result is 22/5.
Transaction ID 
Amount 
Result 

0000123 
1 
Counts as 1 
0000124 
20 
Counts as 20 
0000125 
n/a 
Counts as 0 
0000126 
Counts as 0 

0000126 
TRUE 
Counts as 1 
=AVERAGEA([Amount])
See Also