He is a Microsoft Data Platform MVP for nine continuous years (from 2011 till now) for his dedication in Microsoft BI. Reza. Reza is an active blogger and co-founder of RADACAD. It is not exactly correct with leap years. To understand the current period, an easy way can be calculating start, end of period and number of days between these two. Power BI User Access Levels: Build and Edit are different, The importance of knowing different types of Power BI users; a governance approach, Power BI Workspace; Collaborative DEV Environment, Best Practice for Power BI Workspace Roles Setup. Returns all the rows in a table, or all the values in a column, ignoring any filters that might have been applied inside the query, but keeping filters that come from outside. As you can see in the screenshot above; it shows that the SamePeriodLastYear returns the same date last year when your filter context is in day level. Also add a Card visual which shows SalesAmount from FactInternetSales table. How to organize workspaces in a Power BI environment? Previous period calculation should be number of days in this period minus start of current period. If you wanted to achieve this using DAX, you either needed to write a calculation to calculate the year over year change or use a quick measure to calculate it for you. Thanks a lot Reza Rad!! You can use below DAX code to get 2nd latest item and then use this in your code. Now you can create all the views. Become a member and read every story on Medium! The ability to do such calculation is useful for reports that user want to compare the value of current period with whatever period it was before this. A Medium publication sharing concepts, ideas and codes. However, if you do not have data after December 25, 2008, you might want to compare only the same range of days (December 1 to 25) in the year-over-year comparison. Next easy step is understanding number of days between start and end of period, which is simply by using DateDiff() DAX function as below; I add them all in the report as Card Visuals (one for each measure), and here is the result so far; After finding number of days in this period, start, and end of current period, it is a simple calculation to find the previous period. such advanced charts. If dealing with monthly data, the previous period is the previous . You might wonder what is the sorting of the breakdown field is based on? DAX Patterns: Standard time-related calculations, Using calculation groups or many-to-many relationships for time intelligence selection, Understanding blank row and limited relationships, Using calculation groups or many to many relationships for time intelligence selection, Show the initial balance for any date selection in Power BI Unplugged #48, Counting consecutive days with sales Unplugged #47. Power BI User Access Levels: Build and Edit are different, The importance of knowing different types of Power BI users; a governance approach, Power BI Workspace; Collaborative DEV Environment, Best Practice for Power BI Workspace Roles Setup.

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