Row Number help in calculated column

Hi Anonymous ,

To calculate a running row number in a calculated column based on Value > 0, grouped by Partial and maintaining the row sequence across time, you can use DAX like this:

Row starts =
VAR CurrentDate = [Dt]
VAR CurrentPartial = [Partial]
VAR CurrentIndex = [Index]
RETURN
IF (
    [Value] > 0,
    CALCULATE (
        COUNTROWS (
            FILTER (
                YourTable,
                [Partial] = CurrentPartial &&
                [Dt] <= CurrentDate &&
                [Value] > 0 &&
                [Index] <= CurrentIndex
            )
        )
    ),
    0
)

This assumes you already have a unique [Index] column that ensures each row has a deterministic order. The logic checks if the current row has Value > 0. If so, it counts all prior rows with the same Partial, date up to the current one, and with Value > 0. This count becomes the row number. If Value is zero, it returns 0. The row number continues to increment for each non-zero value across time, separately for each Partial.

Best regards,