Forum Discussion

GertRiet's avatar
GertRiet
Regular Visitor
8 years ago
Solved

Calculating average of date difference between specific rows

Hello everyone!

I am having trouble in creating a specific logic.
The ideia is find the average of the diference of the days between specific rows.

For example:
IDDateCriteria

118/01/2018First
225/01/2018First
321/01/2018First
401/02/2018First
103/02/2018Second
214/03/2018Second
105/02/2018Third


In this example, I want to know the date difference between criteria but in the same ID.
The formula is = DateDifference ID = Second - First
In excel that would be:
ID 1 = 03/02/2018-18/01/2018 = 16 days
ID 2 = 14/03/2018-25/01/2018 = 48 days
ID 3 = Blank (there is no second criteria)
ID 4 = Blank (there is no second criteria)
So, the average of that is 32.

Just like the table under:

DateDIFF (Second - First)
ID 116,00
ID 248,00
ID 3Blank
ID 4Blank
Average32,00



I want to do the same for (Third-Second), and so on...

How Can I create a Measure of that?


Thanks ikn advance, I am stuck in this problem for a few days now....

PS: I want create that in DAX not in Power Query.










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

    Hi GertRiet

     

    You may try to create measures as below:

    Diff =
VAR a =
    CALCULATE (
        MAX ( Table1[Date] ),
        FILTER (
            ALL ( Table1 ),
            Table1[Date] < MAX ( Table1[Date] )
                && Table1[ID] = MAX ( Table1[ID] )
        )
    )
RETURN
    DATEDIFF ( a, MAX ( Table1[Date] ), DAY )
    Average =
AVERAGEX (Table1, [Diff] )

    Regards,

    Cherie

1 Reply

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

    Hi GertRiet

     

    You may try to create measures as below:

    Diff =
VAR a =
    CALCULATE (
        MAX ( Table1[Date] ),
        FILTER (
            ALL ( Table1 ),
            Table1[Date] < MAX ( Table1[Date] )
                && Table1[ID] = MAX ( Table1[ID] )
        )
    )
RETURN
    DATEDIFF ( a, MAX ( Table1[Date] ), DAY )
    Average =
AVERAGEX (Table1, [Diff] )

    Regards,

    Cherie