How to get average gap through filter

[ade_kurniawan]

Dear friends,

i want to get gap from average score from all year data, but the data can't read because my slicer require single selection of year.

Score 2021 = 5.00
Score 2020 = 3.50
the gap score i want to show is 1.50, but if year select is 2021, 2020 data will not be calculated.

here is the pbix file : https://drive.google.com/file/d/10Gpy0UJmCDTovC8NJ25OtS5divb-QDmq/view?usp=sharing

Thanks for help

[v-cazheng-msft · Accepted solution]

Hi @ade_kurniawan ,

You need make a little bit change to your Gap score Measure.

Gap score =
VAR selectedYear =
    MAX ( Sheet1[Year] )
VAR CurrentScore =
    CALCULATE (
        [avg score],
        FILTER ( ALL ( Sheet1 ), Sheet1[Year] = selectedYear )
    )
VAR LastScore =
    CALCULATE (
        [avg score],
        FILTER ( ALL ( Sheet1 ), Sheet1[Year] = MAX ( Sheet1[Year] ) - 1 )
    )
RETURN
    CurrentScore - LastScore

Then, the result should look like this.

If there is any post helps, then please consider Accept it as the solution to help the other members find it more quickly. If I misunderstand your needs or you still have problems on it, please feel free to let me know. Thanks a lot!

Best Regards,

Community Support Team _ Caiyun

[ade_kurniawan]

thank you so much

[amitchandak]

@ade_kurniawan , in such cases, it is best to have the date/year come from a separatetable. joined to your table

Last year avg  =

Calculate([Avg Score], filter(All(Date[Year]), Date[Year] = max(Date[Year])-1))

diff =

[Avg Score] - [Last year avg]