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Regular Visitor

## Rolling average of measure outcome over time taking 4 days in advance and 4 days forward

In my data model I have a total capacity measure which I show on date level. This is the field "FlexLeveling_1 Total FixedFlex". Basically this sums the columns "Benodigde fixed cap (bruto)" and "Benodigde flex cap (netto)" as you can see in the picture below.

Now I want to show a Rolling Average of "FlexLeveling_1 Total FixedFlex" for every date. This rolling average must look back 4 days back and 4 days forward. So basically it covers 9 days of which the selected date is in the middle.

Example:

 Period FlexLeveling_1 Total FixedFlex Rolling average Average over periods 1 11 2 47 3 45 4 44 5 23 35,78 1 to 9 6 34 35,89 2 to 10 7 50 33,78 3 to 11 8 43 30,22 4 to 12 9 25 28,67 5 to 13 10 12 31,00 6 to 14 11 28 12 13 13 30 14 44

I am now applying the syntax below but it gives me unexpected results. Who can help me?

FlexLeveling_2 Rolling average =

AVERAGEX(
FILTER(
ALL('Result cap'[Date]),
'Result cap'[Date]>=DATEADD(LASTDATE('Result cap'[Date]),-4,DAY)&&
'Result cap'[Date]<=DATEADD(LASTDATE('Result cap'[Date]),4,DAY)),
[FlexLeveling_1 Total FixedFlex])
2 REPLIES 2
Super User

Try like examples

Rolling4 = CALCULATE(sum(Sales[Sales Amount]),DATESINPERIOD('Date'[Date],MAX(Sales[Sales Date]),-4,Day))

Rolling 4 plus 4 = CALCULATE(sum(Sales[Sales Amount]),DATESINPERIOD('Date'[Date],MAX(Sales[Sales Date])-4,8,Day))

To get the best of the time intelligence function. Make sure you have a date calendar and it has been marked as the date in model view. Also, join it with the date column of your fact/s. Refer :
https://radacad.com/creating-calendar-table-in-power-bi-using-dax-functions
https://www.archerpoint.com/blog/Posts/creating-date-table-power-bi
https://www.sqlbi.com/articles/creating-a-simple-date-table-in-dax/

See if my webinar on Time Intelligence can help: https://community.powerbi.com/t5/Webinars-and-Video-Gallery/PowerBI-Time-Intelligence-Calendar-WTD-Y...

Appreciate your Kudos.

Regular Visitor

I tried to adopt your tips. This is what I did:

FlexLeveling_2 Rolling average =

CALCULATE(
AVERAGEX(
VALUES('Dates future'[Date]),[FlexLeveling_1 Total FixedFlex]),
DATESINPERIOD('Dates future'[Date],MAX('Result cap'[Date])-4,8,DAY))

As you can see I now make use of a date calendar, which is generated with the CALENDAR() function.

However, I am not getting the result I want. Here is the output (please look at the last column)

The output from 6 Jan onwards should be around 4 or 5.

I also added an explanatory example:

What am I doing wrong?

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