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Jānis's avatar
Jānis
Frequent Visitor
8 years ago
Solved

Calculated table dynamically change from new data

Hello,

 

I have data (in table):

 

I need to calculate and show, what is average employees age at the end of each month in period (for example in period 2017-09 - 2017-12). In example at the end of december (47+27+19)/3. I will show it with Line chart and need to calculate age for every employee at the end of each month in active period.

 

How could I calculate those data? I assume that I need to calculate table...

Or maybe there is other solution.

 

I will appreciate any help.

Need Help
  • v-caliao-msft's avatar
    v-caliao-msft
    8 years ago

    Jānis,

     

    Create a date table to return the last day of each month.

    Create a date table

    Date = CALENDAR(DATE(2015,1,1),DATE(2017,12,31))

     

    Create a column to get the last day of each month
    LastDay = ENDOFMONTH('Date'[Date])

     

    Create another table
    LastDayofMonth = SUMMARIZE('Date','Date'[LastDay])

     

    Create a column to get average age.
    AverageAge =
    DATEDIFF (
        CALCULATE (
            AVERAGE ( Table2[BirthDate] ),
            FILTER (
                Table2,
                OR (
                    ISBLANK ( Table2[InactiveDate] ),
                    Table2[InactiveDate] > 'LastDayofMonth'[LastDay]
                )
            )
        ),
        'LastDayofMonth'[LastDay],
        YEAR
    )

     

    Regards,

    Charlie Liao

     

3 Replies

  • v-caliao-msft's avatar
    v-caliao-msft
    Microsoft Employee
    8 years ago

    Jānis,

     

    Create a date table to return the last day of each month.

    Create a date table

    Date = CALENDAR(DATE(2015,1,1),DATE(2017,12,31))

     

    Create a column to get the last day of each month
    LastDay = ENDOFMONTH('Date'[Date])

     

    Create another table
    LastDayofMonth = SUMMARIZE('Date','Date'[LastDay])

     

    Create a column to get average age.
    AverageAge =
    DATEDIFF (
        CALCULATE (
            AVERAGE ( Table2[BirthDate] ),
            FILTER (
                Table2,
                OR (
                    ISBLANK ( Table2[InactiveDate] ),
                    Table2[InactiveDate] > 'LastDayofMonth'[LastDay]
                )
            )
        ),
        'LastDayofMonth'[LastDay],
        YEAR
    )

     

    Regards,

    Charlie Liao

     

    • Jānis's avatar
      Jānis
      Frequent Visitor
      8 years ago

      Thank you, v-caliao-msft!

       

      Almost working. I'm still cheking solution (new with DAX).

      I found, that I need one more filter - I need to include only active employees, so I need to filter from "Employment Start Date" too, but not sure - is it correct.

       

      AverageAge =
      DATEDIFF (
          CALCULATE (
              AVERAGE ( Table2[BirthDate] ),

              FILTER (

                  Table2, Table2[Employment Start Date] < 'LastDayofMonth'[LastDay]

                  ),
              FILTER (
                  Table2,
                  OR (
                      ISBLANK ( Table2[InactiveDate] ),
                      Table2[InactiveDate] > 'LastDayofMonth'[LastDay]
                  )
              )
          ),
          'LastDayofMonth'[LastDay],
          YEAR
      )

       

    • Jānis's avatar
      Jānis
      Frequent Visitor
      8 years ago

      I needed to make some changes, but in generally it is what I needed.

       

      Thank you, v-caliao-msft