使用Excel中的PowerQuery旋转多个列

Question

我正在尝试转动下表的多个列：

我想得到的结果如下：

我在Excel中使用PowerQuery，但我无法设置多个列的转轴（例如，我可以转动列“数字”，例如）。任何人都对PowerQuery的正确用法有任何见解？

Answer 1

例如，如果国家/地区标题位于单元格A1中，那么D2中的此公式：

= "tax rate" & CountIf( $A$2:$A2, $A2 )

然后复制公式单元格D2并将其粘贴到下面的单元格中，应该给出类似的内容：

country tax rate    Income thresholds   count
UK      20%         35k                 tax rate1
UK      30%         50k                 tax rate2
.....

现在，您可以使用PivotTable或PowerQuery通过该额外计数列进行转换。您可以对Income th1，Income th2等列使用相同的公式。

Answer 2

以下是对问题第一版的回答

let
    src = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
    lettersABC=List.Distinct(src[Attribute1]),
    count=List.Count(lettersABC),
    lettersNUM=List.Transform({1..count}, each "Letter"&Number.ToText(_)),
    numbersNUM=List.Transform({1..count}, each "Number"&Number.ToText(_)),
    group = Table.Group(src, {"ID"}, {{"attr", each Record.FromList(lettersABC&[Attribute2], lettersNUM&[Attribute1])}}),
    exp = Table.ExpandRecordColumn(group, "attr", lettersNUM&lettersABC, lettersNUM&numbersNUM)
in
    exp

Answer 3

这是使用PQ功能区的解决方案，但请注意最后一步（分组依据）不是动态的，例如如果你想要每个国家4 + 4列，你将不得不改变它。

let
Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
#"Changed Type" = Table.TransformColumnTypes(Source,{{"country", type text}, {"tax rate", type number}, {"Income thresholds", type text}}),
#"Added Index" = Table.AddIndexColumn(#"Changed Type", "Index", 0, 1),
#"Grouped Rows" = Table.Group(#"Added Index", {"country"}, {{"Min Index", each List.Min([Index]), type number}, {"All Rows", each _, type table}}),
#"Expanded All Rows" = Table.ExpandTableColumn(#"Grouped Rows", "All Rows", {"Income thresholds", "Index", "tax rate"}, {"Income thresholds", "Index", "tax rate"}),
#"Added Custom" = Table.AddColumn(#"Expanded All Rows", "Column Index", each [Index] - [Min Index] + 1),
#"Removed Columns" = Table.RemoveColumns(#"Added Custom",{"Min Index", "Index"}),
#"Duplicated Column" = Table.DuplicateColumn(#"Removed Columns", "Column Index", "Column Index - Copy"),
#"Added Prefix" = Table.TransformColumns(#"Duplicated Column", {{"Column Index", each "tax rate" & Text.From(_, "en-AU"), type text}}),
#"Pivoted Column" = Table.Pivot(#"Added Prefix", List.Distinct(#"Added Prefix"[#"Column Index"]), "Column Index", "tax rate", List.Max),
#"Added Prefix1" = Table.TransformColumns(#"Pivoted Column", {{"Column Index - Copy", each "Income thresholds" & Text.From(_, "en-AU"), type text}}),
#"Pivoted Column1" = Table.Pivot(#"Added Prefix1", List.Distinct(#"Added Prefix1"[#"Column Index - Copy"]), "Column Index - Copy", "Income thresholds", List.Max),
#"Grouped Rows1" = Table.Group(#"Pivoted Column1", {"country"}, {{"tax rate1", each List.Max([tax rate1]), type number}, {"tax rate2", each List.Max([tax rate2]), type number}, {"tax rate3", each List.Max([tax rate3]), type number}, {"Income th1", each List.Max([Income thresholds1]), type text}, {"Income th2", each List.Max([Income thresholds2]), type text}, {"Income th3", each List.Max([Income thresholds3]), type text}})
in
#"Grouped Rows1"