A Real-World Example of Using UDF in DAX

A new user-defined function (UDF) feature has been introduced in Power BI for DAX, allowing for the encapsulation of business logic. This is demonstrated through a real-world example of forecasting income with an inflation simulation. The process involves creating a parameter for the inflation rate and then writing a DAX function that calculates future income based on the last known sales amount and the selected rate. The function utilizes both VAL and EXPR parameters, making it flexible enough to accept different measures like online sales or total sales. UDFs offer a simpler and more reusable alternative to Calculation Groups for implementing custom logic.