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Should you use DAX user-defined functions (UDF) or calculation groups? Learn when to use either, and how they complement each other in the design of a semantic model in Power BI.


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This article describes the different roles of user-defined functions and calculation groups, explaining when to use either, and how they complement each other in the design of a semantic model.

The introduction of user-defined functions (UDFs) in DAX changes the way we think about code reuse. Before UDFs existed, calculation groups were the only mechanism for shar...


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The third edition of the Mastering DAX video course is available!

We are proud to announce that the third edition of the Mastering DAX video course is now online!

The world has changed so much since t...


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Create a DAX model-independent user-defined function (UDF) to easily apply the like-for-like pattern to your data.


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This article offers a comprehensive guide to changing the like-for-like pattern into model-independent functions to enhance flexibility and simplify DAX code.

DAX user-defined functions (UDFs) are a powerful tool for improving the quality of your semantic models. DAX authors with an IT background are accustomed to creating generic code using functions. However, ma...


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