Forum Discussion

Anonymous's avatar
Anonymous
Not applicable
5 years ago
Solved

MAT Calculation

Dear Power BI Community,

I would like to calculate a MAT using a DAX formula but I would need you help.

MAT calculation would be from now (year 2021) over the last 13 periods and would like to calculate like this on % Grade A:

MAT = (% Grade A in Period 8 2021 (we are in P8) - % Grade A in P7 2021) + (% Grade A in P7 2021- % Grade A in P6 2021).... + (% Grade A in P9 2020 - % Grade A in P8 2020)

 

The % Grade A is already a formula

"Percentage = DIVIDE(CALCULATE(
COUNTA('rclms_qa'[CONFORMITY]),
ALLSELECTED('rclms_qa'[CONFORMITY])
),CALCULATE(
COUNTA('rclms_qa'[CONFORMITY]),
ALL('rclms_qa'[CONFORMITY])
))*100"
 
Do you have any recommendations? I would appreciate.
Thanks
Hervé
Need Help
  • v-luwang-msft's avatar
    v-luwang-msft
    5 years ago

    Hi Anonymous ,

    Sorry, it was an oversight on my part and I have adjusted the relevant measure😋:

    Percentage22 = 
DIVIDE (
    (CALCULATE (
        COUNTA ( 'rclms_qa'[CONFORMITY] ),
        FILTER (
            ALL(rclms_qa),
            rclms_qa[Period] = MAX ( rclms_qa[Period] )
                && rclms_qa[Year] = MAX ( rclms_qa[Year] )
        )
    )
        - CALCULATE (
            COUNTA ( 'rclms_qa'[CONFORMITY] ),
            FILTER (
                ALL(rclms_qa),
                rclms_qa[Period]
                    = IF (
                        INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) ) + 1 ) < 10
                            || INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) ) + 1 ) = 14,
                        "P" & "0"
                            & IF (
                                INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) ) + 1 ) = 14,
                                1,
                                INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) ) + 1 )
                            ),
                        "P"
                            & INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) ) + 1 )
                    )
                    && rclms_qa[Year]
                        =IF (
                        INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ))) =13, MAX ( rclms_qa[Year] ), MAX ( rclms_qa[Year] ) - 1)
            )
        )),
    CALCULATE ( COUNTA ( 'rclms_qa'[CONFORMITY] ), ALL ( 'rclms_qa') )
) * 100
    YEARTEST = IF (
                        INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) )  )=13, MAX ( rclms_qa[Year] ), MAX ( rclms_qa[Year] ) - 1)

     

     

    Best Regards

    Lucien

13 Replies

  • v-luwang-msft's avatar
    v-luwang-msft
    Community Support
    5 years ago

    Hi Anonymous ,

    I don't see the fields in the slicer in the data you provided earlier, is it convenient to provide the pbix file, remember to delete the confidential data.

     

    Best Regards

    Lucien

  • lbendlin's avatar
    lbendlin
    Super User
    5 years ago

    Please provide sample data in usable format (not as a picture) and show the expected outcome.

    • Anonymous's avatar
      Anonymous
      Not applicable
      5 years ago

      Hello lbendlin 

      Here is the table:

       

      YearCONFORMITYPeriodFactories
      2020OKP13RCA
      2020OKP13RCA
      2020OKP13RCA
      2021OKP01RFT
      2021WRNG_NOKP01RFT
      2021OKP02RNI
      2021OKP02RNI
      2021OKP02RNI
      2021OKP02RNI
      2021OKP02RNI

       

      So the Grade A (control OK) will be calculated based on the formula above - then I need to make the % Grade A difference (P2-P1 2021) + (P1 2021-P13 2020).

      Outcome would be + or - x %.

       

      Thanks for your help - and let me know if not clear.

      Hervé

  • v-luwang-msft's avatar
    v-luwang-msft
    Community Support
    5 years ago

    Hi Anonymous ,


    (% Grade A in Period 8 2021- % Grade A in Period 7 2021)+(% Grade A in Period 7 2021-% Grade A in Period 6 2021)

     

    =% Grade A in Period 8 2021- % Grade A in Period 7 2021+% Grade A in Period 7 2021-% Grade A in Period 6 2021


    =% Grade A in Period 8 2021-% Grade A in Period 6 2021

     

    If you follow the calculation steps you mentioned:

    final is % Grade A in Period 8 2021 -% Grade A in P8 2020.

    Then   (COUNTA ( 'rclms_qa'[CONFORMITY] )  and filter year= 2021,period=8 ) -( (COUNTA ( 'rclms_qa'[CONFORMITY] )  and filter year= 2020,period=8 )/COUNTA ( 'rclms_qa'[CONFORMITY] ) all the table .

    Percentage =
DIVIDE (
    CALCULATE (
        COUNTA ( 'rclms_qa'[CONFORMITY] ),
        FILTER ( rclms_qa, rclms_qa[Period] = "P08" && rclms_qa[Year] = 2021 )
    )
        - CALCULATE (
            COUNTA ( 'rclms_qa'[CONFORMITY] ),
            FILTER ( rclms_qa, rclms_qa[Period] = "P08" && rclms_qa[Year] = 2020 )
        ),
    CALCULATE ( COUNTA ( 'rclms_qa'[CONFORMITY] ), ALL ( 'rclms_qa'[CONFORMITY] ) )
) * 100

    And the data you provided ,try the following dax:

    Percentage = 
 DIVIDE (  CALCULATE (
        COUNTA ( 'rclms_qa'[CONFORMITY] ),
        FILTER(rclms_qa,rclms_qa[Period]="P02"&&rclms_qa[Year]=2021)
    )- CALCULATE (
        COUNTA ( 'rclms_qa'[CONFORMITY] ),
        FILTER(rclms_qa,rclms_qa[Period]="P13"&&rclms_qa[Year]=2020)
    ) ,CALCULATE ( COUNTA ( 'rclms_qa'[CONFORMITY] ), ALL ( 'rclms_qa'[CONFORMITY] ) )
) * 100

     

    If you still have any doubts, you can share your pbix file and remember to remove confidential data.

     

     

    WIsh it is helpful for you!

     

    Best Regards

    Lucien

    • Anonymous's avatar
      Anonymous
      Not applicable
      5 years ago

      Dear v-luwang-msft 

      Thanks for your answer. Your calculation seems logical.

      How can we make it automatic? I mean I would need to take the actual period (or the day of today that corresponds to a certain period (ex. 29/07/21 = P8) and calculate on the over last 13 periods (from P8 2021 until P9 2020 = 13 periods = 1 year for our company)?

      Hervé

  • v-luwang-msft's avatar
    v-luwang-msft
    Community Support
    5 years ago

    Hi Anonymous ,

    Try the following measure:

    Percentage22 = 
DIVIDE (
    (CALCULATE (
        COUNTA ( 'rclms_qa'[CONFORMITY] ),
        FILTER (
            ALL(rclms_qa),
            rclms_qa[Period] = MAX ( rclms_qa[Period] )
                && rclms_qa[Year] = MAX ( rclms_qa[Year] )
        )
    )
        - CALCULATE (
            COUNTA ( 'rclms_qa'[CONFORMITY] ),
            FILTER (
                ALL(rclms_qa),
                rclms_qa[Period]
                    = IF (
                        INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) ) + 1 ) < 10
                            || INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) ) + 1 ) = 14,
                        "P" & "0"
                            & IF (
                                INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) ) + 1 ) = 14,
                                1,
                                INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) ) + 1 )
                            ),
                        "P"
                            & INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) ) + 1 )
                    )
                    && rclms_qa[Year]
                        = MAX ( rclms_qa[Year] ) - 1
            )
        )),
    CALCULATE ( COUNTA ( 'rclms_qa'[CONFORMITY] ), ALL ( 'rclms_qa') )
) * 100

    (the picture (3-1)/14=14.29)

    This measure, will automatically calculate the difference between the date in the column and the date before the 13 stages, and then divided by the total, I provide my PBIX, which has some of my thinking and verification steps, you can refer to, I hope it will be useful to you.

     

     

    Best Regards

    Lucien

    • Anonymous's avatar
      Anonymous
      Not applicable
      5 years ago

      Dear v-luwang-msft 

      Thanks a lot - I'm really impressed by the work & formula.

      I have one doubt regarding the calculation because if we are in P13 2020, 13 periods earlier, we should be in P1 2020 (and not P1 2019) -> no?

      Thanks

      Hervé

       

       

      • v-luwang-msft's avatar
        v-luwang-msft
        Community Support
        5 years ago

        Hi Anonymous ,

        Sorry, it was an oversight on my part and I have adjusted the relevant measure😋:

        Percentage22 = 
DIVIDE (
    (CALCULATE (
        COUNTA ( 'rclms_qa'[CONFORMITY] ),
        FILTER (
            ALL(rclms_qa),
            rclms_qa[Period] = MAX ( rclms_qa[Period] )
                && rclms_qa[Year] = MAX ( rclms_qa[Year] )
        )
    )
        - CALCULATE (
            COUNTA ( 'rclms_qa'[CONFORMITY] ),
            FILTER (
                ALL(rclms_qa),
                rclms_qa[Period]
                    = IF (
                        INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) ) + 1 ) < 10
                            || INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) ) + 1 ) = 14,
                        "P" & "0"
                            & IF (
                                INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) ) + 1 ) = 14,
                                1,
                                INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) ) + 1 )
                            ),
                        "P"
                            & INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) ) + 1 )
                    )
                    && rclms_qa[Year]
                        =IF (
                        INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ))) =13, MAX ( rclms_qa[Year] ), MAX ( rclms_qa[Year] ) - 1)
            )
        )),
    CALCULATE ( COUNTA ( 'rclms_qa'[CONFORMITY] ), ALL ( 'rclms_qa') )
) * 100
        YEARTEST = IF (
                        INT ( VALUE ( RIGHT ( MAX ( rclms_qa[Period] ), 2 ) )  )=13, MAX ( rclms_qa[Year] ), MAX ( rclms_qa[Year] ) - 1)

         

         

        Best Regards

        Lucien