In this video, Mitchell explores the distinction between the ALL and ALL SELECTED functions, explaining their unique applications for various analytical needs. The discussion provides clarity on the appropriate circumstances for using each function, helping viewers make informed decisions when handling their data. Mitchell’s goal is to aid in understanding which function is most suitable given a specific scenario, thus enhancing viewers’ analytical proficiency.
DAX (Data Analysis Expressions) is a formula language used in Power BI to create custom calculations on data models. Two of these functions are ALL and ALLSELECTED.
This expression would calculate the sum of all sales across all products, ignoring any current product filter context.
This expression would calculate the sum of all sales for the products that are currently selected in the report, ignoring other filter contexts but preserving user selections.
These two functions are used for different types of analysis in Power BI, and understanding when to use each one is key to effectively manipulating and interpreting your data.