Tutorial with example
In today’s video I will show you two new DAX functions: UNICHAR and REPT
UNICHAR DAX function allows you to display unicode symbols in Power BI and Excel.
REPT allows you to repeat text using DAX.
With both functions you can create a star rating visualization among other cool things.
Download example file:
If XML characters are not invalid, UNICHAR returns an error.
If Unicode numbers are partial surrogates and data types are not valid, UNICHAR returns an error.
If numbers are numeric values that fall outside the allowable range, UNICHAR returns an error.
If number is zero (0), UNICHAR returns an error.
The Unicode character returned can be a string of characters, for example in UTF-8 or UTF-16 codes.
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.
Moreover, RAND is always recalculated if the function is used in the definition of a measure.
Also, in such contexts the RAND function cannot return a result of zero, to prevent errors such as division by zero.
This DAX function is not supported for use in DirectQuery mode.