How to get the next date in a filtered result

[digitalPlay]

Hi All,

I would like to get the End Date of the first ID then subtract it from the Start Date of the next ID to get the duration between them.
The tricky part for me is that this table/visual is a result based on a filter. 
Thanks in advance! 😊

[Anonymous · Accepted solution]

Hi @digitalPlay ,

Please have a try. Create a measure.

Duration =
VAR CurrentRow =
    MAX ( 'Table'[ID] )
VAR PreviousRow =
    CALCULATE (
        MAX ( 'Table'[ID] ),
        FILTER ( ALL ( 'Table' ), 'Table'[ID] < CurrentRow )
    )
VAR StartDate =
    CALCULATE (
        MAX ( 'Table'[start date] ),
        FILTER ( ALL ( 'Table' ), 'Table'[ID] = CurrentRow )
    )
VAR EndDate =
    CALCULATE (
        MAX ( 'Table'[end date] ),
        FILTER ( ALL ( 'Table' ), 'Table'[ID] = PreviousRow )
    )
RETURN
    DATEDIFF ( EndDate, StartDate, DAY )

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