Top 20 DAX Functions: Explanation and Examples for Power BI 1. SUM() Description: Adds up all values in a column. Example: SUM(Sales[Amount]) 2. AVERAGE() Description: Returns the average of values in a column. Example: AVERAGE(Sales[Amount]) 3. COUNT() Description: Counts the number of rows in a column. Example: COUNT(Sales[OrderID]) 4. DISTINCTCOUNT() Description: Returns the count of unique values in a column. Example: DISTINCTCOUNT(Sales[CustomerID]) 5. CALCULATE() Description: Evaluates an expression in a modified context. Example: CALCULATE(SUM(Sales[Amount]), Sales[Region] = "West") 6. FILTER() Description: Returns a table that meets a specific condition. Example: FILTER(Sales, Sales[Amount] > 1000) 7. ALL() Description: Ignores all filters on the specified column or table. Example: ALL(Sales[Region]) 8. RELATED() Description: Returns a value from a related table. Example: RELATED(Customers[CustomerName]) 9. RELATEDTABLE() Description: Returns a tab...