What are the three fundamental concepts of DAX in PowerBI ?

The three core principles of Data Analysis Expressions (DAX) include:

Filter Context: This pivotal concept in DAX outlines the filters that are applied to data during calculations. The filter context, which can be either implicit or explicit, dictates the specific rows and columns of data that are factored into calculations. Grasping the application of filter context and its impact on DAX calculation outcomes is vital.

Row Context: This principle in DAX specifies the calculation context for each data row within a table. Generated automatically as it iterates through table rows or table expressions, row context allows for referencing values from the current row in calculations. Comprehending row context is imperative for crafting precise and efficient DAX formulas.

Evaluation Context: Encompassing both filter and row contexts, the evaluation context is where DAX expressions are assessed and computed. It sets the stage for how data is filtered, summed up, and altered during DAX computations, making it a key element in understanding the functionality of DAX operations and expressions.

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