如何从两列中计算新列值及其在Power bi中的动态总和？

如何解决如何从两列中计算新列值及其在Power bi中的动态总和？

我正尝试添加两个静态值RM500的列，这为我们提供了一个名为totalSA的新列

我的表格是：

200
messageOK
{"message":"success","data":["query execution time : 677.0.....]}
200
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{"message":"success","data":["query execution time : 19.0.....]}
200
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{"message":"success","data":["query execution time : 18.0.....]}
200
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{"message":"success","data":["query execution time : 129.0.....]}
200
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{"message":"success","data":["query execution time : 39.0.....]}
200
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{"message":"success","data":["query execution time : 17.0.....]}
200
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{"message":"success","data":["query execution time : 197.0.....]}
200
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{"message":"success","data":["query execution time : 41.0.....]}
200
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{"message":"success","data":["query execution time : 20.0.....]}
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{"message":"success","data":["query execution time : 13.0.....]}

预期表为：

Transaction Date    Pol No.     Policy Status   Incremental SA  Referral SA
16-Sep-20          P00061353    Inforce             RM100         0
17-Sep-20          P00061353    Inforce             RM100         0
18-Sep-20          P00061353    Inforce             RM100         0
18-Sep-20          P00061353    Inforce             RM100        RM200
19-Sep-20          P00061353    Inforce             RM100         0
18-Sep-20          P00061354    Inforce             RM100         0
18-Sep-20          P00061354    Inforce             RM100        RM200
19-Sep-20          P00061354    Inforce             RM100         0

逻辑：如果“策略号”相同，则需要增加。

Transaction Date    Pol No.     Policy Status   Incremental SA  Referral SA  Total SA
16-Sep-20          P00061353    Inforce             RM100         0           RM600
17-Sep-20          P00061353    Inforce             RM100         0           RM700
18-Sep-20          P00061353    Inforce             RM100         0           RM800
18-Sep-20          P00061353    Inforce             RM100        RM200        RM1100
19-Sep-20          P00061353    Inforce             RM100         0           RM1200
18-Sep-20          P00061354    Inforce             RM100         0           RM600
18-Sep-20          P00061354    Inforce             RM100        RM200        RM900
19-Sep-20          P00061354    Inforce             RM100         0           RM1000

我尝试了以下代码不起作用。

(Initial value/previous toal)+Incremental SA + Referral SA   Total SA
      RM500                  +        RM100  +0              RM600 (New Policy)
      RM600                  +        RM100  +0              RM700
      RM700                  +        RM100  +0              RM800
      RM800                  +        RM100  +RM200          RM1100
      RM1100                 +        RM100  +0              RM1200
      RM500                  +        RM100  +0              RM600 (New Policy)
      RM600                  +        RM100  +RM200          RM900
      RM900                  +        RM100  +0              RM1000

解决方法

就像您说的那样，表中有一个索引列，让您的数据如下所示-

现在，在表中的测量之后创建此表-

total_sa = 

var initial_amount = 500
var current_index = MIN('Table'[Index])

var cumulative_inc_sa = 
CALCULATE(
    SUM('Table'[Incremental SA]),FILTER(
        ALL('Table'),'Table'[Index] <= current_index
    )
) + 0

var cumulative_ref_sa = 
CALCULATE(
    SUM('Table'[Referral SA]),'Table'[Index] <= current_index
    )
) + 0

RETURN initial_amount + cumulative_inc_sa + cumulative_ref_sa

这是您的最终输出-

,

在您的示例中，并假设所有事务均按索引排序，这看起来像一个简单的总计：

Total_SA =
VAR currentIndex = SELECTEDVALUE('Table'[Index])
RETURN
 CONCATENATE("RM",CONVERT(
       CALCULATE(SUM(CONVERT(SUBSTITUTE('Table'[Incremental SA],"RM",""),INTEGER)) 
               + SUM(CONVERT(SUBSTITUTE('Table'[Referral SA],INTEGER)),ALL('Table'),'Table'[Index] <= currentIndex
       ) + 500,STRING))

我建议您另外使用SA的int值创建2列，因为这会使代码更具可读性。