If we want to check, within the DAX statement, whether the element belongs to the given set we will use the operator IN and then, in the extension, in curly brackets, list the elements that belong to the set. In this way we can associate a filter within the CALCULATE function that specifies more than one value. A similar effect is achieved with the CONTAINSROW function.
When we use the DAX function CALCULATE and give it the filter values as arguments as a result we will get a Power Pivot report filled with rows containing the same values. Although these values correspond to the given filter this way of displaying data is not the best solution. To make report neat, we can use the FILTER function or, even better, the KEEPFILTERS function about which you will learn more if you read the text that follows …
The CONCATENATE function is used to join strings in the DAX language. DAX also has a corresponding “X” function that acts as an iterator and allows joining of multiple strings with an option to use delimiter and sorting direction by given expression. In this post, you will learn how to use the CONCATENATEX function in a specific example, by displaying all brands in relation to the filter of the manufacturer to which they belong.
DAX is a language that comes in several flavors. While most features are available at the same time for Excel, Power BI and SQL Server Analysis Services some of them are platform-specific. Because Power BI has the ability to generate tables and there are DAX functions that, as a result, return tables in this post we will address some of them that can only be only used in Power BI DAX statements, not in Excel.
If you’ve thought that, when you start using PowerPivot, will get rid of array lookup functions you were deadly wrong! Although the concept of a data model does not go hand in hand with the need to use these class of functions, it is sometimes necessary to search the arrays. To do this you will use the LOOKUPVALUE function, and how to use it, in combination with the WEEKDAY function, you will find out in the text that follows.