RAND is a DAX function that returns a random number between 0 (inclusive) and 1 (exclusive), which changes upon recalculation.
Syntax
RAND( )Return Values
A decimal number.
Remarks
Recalculation depends on various factors, including whether the model is set to
ManualorAutomaticrecalculation mode, and whether data has been refreshed.RAND and other volatile functions that do not have fixed values are not always recalculated. For example, execution of a query or filtering will usually not cause such functions to be re-evaluated. However, the results for these functions will be recalculated when the entire column is recalculated. These situations include refresh from an external data source or manual editing of data that causes re-evaluation of formulas that contain these functions.
RAND is always recalculated if the function is used in the definition of a measure.
RAND function cannot return a result of zero, to prevent errors such as division by zero.
To generate a random real number between two other numbers, use:
= RAND()*(b-a)+a
To generate a random number greater than 0 and less than 1:
= RAND()
To generate a random number greater than 0 and less than 100
= RAND()*100
To generate a random whole number greater than 0 and less than 100
INT(RAND()*100)
Related functions
Other functions related to RAND are:
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