COUNTX DAX Function (Aggregation)
Counts the number of values which result from evaluating an expression for each row of a table.
The table containing the rows for which the expression will be evaluated.
The expression to be evaluated for each row of the table.
Returns the number of values that are non blank by iterating the provided table.
When the function finds no rows producing a non-blank value, it returns a blank.
COUNTX and COUNTAX are identical in DAX for all the data types except Boolean. COUNTAX can operate on a Boolean data type, whereas COUNTX cannot do that.
-- COUNT is the short version of COUNTX, when used with one column only -- In DAX, there are no differences between COUNTA and COUNT -- COUNTX can be expressed in a more explicit way by using CALCULATE -- and COUNTROWS DEFINE MEASURE Customer[# Customers] = COUNTROWS ( Customer ) MEASURE Customer[# Individuals 1] = COUNT ( Customer[Customer Name] ) MEASURE Customer[# Individuals 2] = COUNTX ( Customer, Customer[Customer Name] ) MEASURE Customer[# Individuals 3] = CALCULATE ( COUNTROWS ( Customer ), NOT ISBLANK ( Customer[Customer Name] ) ) EVALUATE SUMMARIZECOLUMNS ( Customer[Continent], "# Customers", [# Customers], "# Individuals 1", [# Individuals 1], "# Individuals 2", [# Individuals 2], "# Individuals 3", [# Individuals 3] )
|Continent||# Customers||# Individuals 1||# Individuals 2||# Individuals 3|
-- COUNTX is needed when you need to count the result of a formula -- In this case, COUNTX reads better than CALCULATE DEFINE MEASURE Customer[# Individuals Children/Car 1] = COUNTX ( Customer, DIVIDE ( Customer[Total Children], Customer[Cars Owned] ) ) MEASURE Customer[# Individuals Children/Car 2] = COUNTROWS ( FILTER ( Customer, NOT ISBLANK ( DIVIDE ( Customer[Total Children], Customer[Cars Owned] ) ) ) ) EVALUATE SUMMARIZECOLUMNS ( Customer[Continent], "# Individuals Children/Car 1", [# Individuals Children/Car 1], "# Individuals Children/Car 2", [# Individuals Children/Car 2] )
|Continent||# Individuals Children/Car 1||# Individuals Children/Car 2|
Other related functions are:
Last update: Jun 10, 2023 » Contribute » Show contributors
Contributors: Alberto Ferrari, Marco Russo, Kenneth Barber
Microsoft documentation: https://docs.microsoft.com/en-us/dax/countx-function-dax