PRACTICAL WAYS to use the WINDOW function in Power BI // Beginners Guide to Power BI 

The absolute and relative is like the $ in excel, when you “drag” a window. That’s how I “framed” it in my mind

Window functions are easy if you've done some SQL before. Otherwise, think of it like Excel Absolute and relative reference when calculating cummulative total like SUM($A$1:A2). The major catch being the PartitionBy which revs the power up by more than 100 😅.

Window = MAXX( WINDOW( 1,ABS,-1,ABS, SUMMARIZE( ALL('Calendar'),'Calendar'[Month_Name],'Calendar'[Year_ID] ) ,,,PARTITIONBY('Calendar'[Year_ID])), [Customer Sales] ) This is not working for me. Can you please check if dax is right or not?

Thank you for this tutorial, but could explain why with me it works differently ? : Highest Selling Month by Year = MAXX( WINDOW( 1, ABS, // start of the window -1, ABS, // end of the window SUMMARIZE(ALLSELECTED('Maven Cycles Calendar'), 'Maven Cycles Calendar'[Year], 'Maven Cycles Calendar'[Month Number]), , , PARTITIONBY('Maven Cycles Calendar'[Year]) ), [Total Quantity] ) returns the exact same value that Total Quantity" column (Start of Month row - e.g. "January 2015, February 2025....")

Thanks for simplify way to understanding windows function 😊

Thanks for this scenario based window function

Thank you 👍🏻👍🏻👍🏻👍🏻

Excellent explanation!

'promo sm' 😡

Great content