计算日差 Power BI、Dax

Question

我试图获取表视图 power bi 中的天数差异，但它没有显示 dax 每一行的差异。我想要实现的是天数的逐行差异，并且如果 one-Id 具有仅针对最大阶段的当前日期计算的最后一天。

期望这样的输出：

示例表：

ID  Date    Stage.       Diff
101 2025-01-01  Stage 1 4
101 2025-01-05  Stage 2 5
101 2025-01-10  Stage 3 2025-01-10 - current date
102 2025-01-02  Stage 1 5
102 2025-01-07  Stage 2 3
102 2025-01-10  Stage 3 2025-01-10 - current date 

VAR Id = SELECTEDVALUE('table'[ID])

-- Step 1: Get the current date for the selected  ID
VAR CurrentDate =
    CALCULATE(
        MAX('table'[date]),
        FILTER(
            'table',
            'table'[ID] = Id
        )
    )

-- Step 2: Get the current stage name for the selected Opportunity ID
VAR CurrentStage =
    CALCULATE(
        MAX('table'[stage]),
        FILTER(
            'table',
            'table'[ID] = Id &&
            'table'[date] = CurrentDate
        )
    )

-- Step 3: Find the next row date (earliest date greater than CurrentDate) for the selected Opportunity ID
VAR NextRowDate =
    CALCULATE(
        MIN('table'[date]),
        FILTER(
            'table',
            'table'[ID] = Id &&
            'table'[date] > CurrentDate
        )
    )

-- Step 4: Find the stage name associated with the NextRowDate
VAR NextStage =
    CALCULATE(
        MAX('table[stage]),
        FILTER(
            'table',
            'table[ID] = Id &&
            'table'[date] = NextRowDate
        )
    )


-- Step 5: Calculate the difference in days
VAR DaysDiff = 
    IF(
        ISBLANK(NextRowDate), 
        DATEDIFF(CurrentDate, TODAY(), DAY), -- If it's the last entry, calculate difference from today
        IF(
            CurrentStage = NextStage, 
            0, -- No change in stage
            DATEDIFF(CurrentDate, NextRowDate, DAY) -- Calculate days difference
        )
    )

-- Step 6: Return the final result if DaysDiff is positive
RETURN
IF(DaysDiff >= 0, DaysDiff)

Answer 1

在powerbi中，一列只能有一种日期类型。所以我认为你不能同时显示日期和数字，除非你将日期更改为数字类型

您可以创建一个专栏

Column=
VAR _date =
    MINX (
        FILTER (
            'Table',
            'Table'[ID] = EARLIER ( 'Table'[ID] )
                && 'Table'[Date] > EARLIER ( 'Table'[Date] )
        ),
        'Table'[Date]
    )
RETURN
    IF ( ISBLANK ( _date ), 'Table'[Date], DATEDIFF ( 'Table'[Date], _date, DAY ) )

或措施

MEASURE =
VAR _date =
    MINX (
        FILTER (
            ALL ( 'Table' ),
            'Table'[ID] = MAX ( 'Table'[ID] )
                && 'Table'[Date] > MAX ( 'Table'[Date] )
        ),
        'Table'[Date]
    )
RETURN
    IF (
        ISBLANK ( _date ),
        MAX ( 'Table'[Date] ),
        DATEDIFF ( MAX ( 'Table'[Date] ), _date, DAY )
    )