Power BI自定义列Column，List.Sum"column of the table was not found"，为什么？

Question

我正在尝试在 PBI 和 Power Query 中做运行总计。

我有一个 Sum 列，它是通过对三列求和创建的。我创建了一个索引。

我使用了以下 "Costum Column":

List.Sum(List.Range(#"Added Index"[Sum],0,[Index]))

我收到此错误："Expression.Error: The column 'Sum' of the table wasn't found."

我完全不明白是什么原因造成的。

以下是从创建我的索引列开始执行的幂查询步骤：

#"Added Index" = Table.AddIndexColumn(#"Changed Type3", "Index", 1, 1),
    #"Changed Type4" = Table.TransformColumnTypes(#"Added Index",{{"ItalyZ", Int64.Type}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type4", "Sum ItalyZ ItalyY ItalyB", each [Z Italy]+[Y Italy]+[B Italy]),
    #"Changed Type5" = Table.TransformColumnTypes(#"Added Custom",{{"Sum ItalyZ ItalyY ItalyB", Int64.Type}}),
    #"Added Custom1" = Table.AddColumn(#"Changed Type5", "Custom", each List.Sum(List.Range(#"Added Index"[Sum ItalyZ ItalyY ItalyB],0,[Index]))),
    #"Changed Type6" = Table.TransformColumnTypes(#"Added Custom1",{{"Custom", type number}}),
    Custom = #"Changed Type6"{0}[Custom]

Answer 1

我认为你的问题是你需要改变：

#"Added Custom1" = Table.AddColumn(#"Changed Type5", "Custom", each List.Sum(List.Range(#"Added Index"[Sum ItalyZ ItalyY ItalyB],0,[Index]))),

至：

#"Added Custom1" = Table.AddColumn(#"Changed Type5", "Custom", each List.Sum(List.Range(#"Changed Type5"[Sum ItalyZ ItalyY ItalyB],0,[Index]))),

注意从 #"Added Index"[Sum ItalyZ ItalyY ItalyB] 到 #"Changed Type5"[Sum ItalyZ ItalyY ItalyB]

的编辑

Power BI自定义列Column，List.Sum"column of the table was not found"，为什么？

Power BI costum column Column, List.Sum "column of the table was not found", why?

indexing

sum

cumulative-sum

powerquery