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Fabrizio
Regular Visitor

how can i get rid of spikes in rolling 12 months calculation?

Hi

i have a measure for rolling 12 months, we have daily unit sales - except on weekends. That creates spikes in the rolling 12 months measure (due to weekend shifts from one year to the other). I would like to flatten this, maybe with some sort of rolling 7 days as an intermediate calculation? 

Do you have any idea, how i could solve this? 

 

rolling 12 months.PNG

 

The measure i use for the rolling 12 months looks like this:

 

Total Actual Rolling 12 Months =
CALCULATE(
[Total Actual],
DATESINPERIOD('Date'[Date], MAX('Date'[Date]), -1, YEAR))
 
Thank you in advance. 
 
Fabrizio
5 REPLIES 5
Fabrizio
Regular Visitor

Hi @lbendlin 

i struggled trying to build/combine these two calculations. Do you have an example calculation on which i could build? 

Please provide sanitized sample data that fully covers your issue.

Please show the expected outcome based on the sample data you provided.

Hi @lbendlin 

Sorry for the late response. I can't provide any sample data. 

And i can't show the expected outcome because i can't produce it.. 

But i think i explained it: I would like to flatten the daily spikes of my 12 months rolling line chart. 

 

So maybe it is possible for you to show me a generic calculation on how i could calculated a weekly average and use this for the rolling 12 months (which is calculated on daily basis) ? 

 

 

"I can't provide any sample data. "

 

I cannot help you without sample data.

lbendlin
Super User
Super User

Yes, a sliding window average (let's say three days prior to three days after) should give you the required smoothing.

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