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Hello,
I'm trying to calculate the Standard Deviation on power bi for QTY sold for an item Id for the last 52 Weeks.
I did it on excel using ( STDEV ) function and i got the result number on column named ( STDEV_by_Item_ID on EXCEL ) =
24919.5784062567
i was trying to get the same exact result on excel ( 24919.5784062567 ) on powerbi Dax using the funcation ( STDEVX.P ) but i got antother different number. Is there a way to get the exact reault number on power bi ? I tried too many functions on power bi with no luck.
i have attached the ppix file on the link below. I hope i can find soultion on the same ppix file.
https://we.tl/t-OZvZrAM401
Thank you !
You need to unpivot the weekly data into 2 columns one containing the Week numbers and the other containing the values. Unable to unpivot your pbix file because the source file in excel is not available. The following video will help you with unpivot
https://www.youtube.com/watch?v=SLZGWy2OUPo&list=PLApPcvU5-R24K3mbxORV7T3ckVLfDjmHF&index=29
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