在excel中将数据从列转换为行

Question

我需要将多行和多列中的数据转换为唯一的行，但是围绕我需要的内容有特定的规则。当前数据格式的示例如下：

拆分应基于样式、颜色和唯一的 upc，但我需要将一些字段复制到每个唯一的 upc 以获取样式和颜色。我还需要显示父子关系。

下面的例子是我希望数据的显示方式。

我尝试在电源查询中执行此操作...但完全卡住了！

提前感谢您的任何建议。

Answer 1

这似乎在粘贴到 home...advanced editor.. 的 powerquery 中有效。假设您的初始表是范围 Table1 并且类似于您提供的示例结构

Unpivot，从属性中删除数字，分组并为后面的枢轴添加索引，枢轴。剩下的只是自定义列和填充

 let Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
 #"Unpivoted Other Columns" = Table.UnpivotOtherColumns(Source, {"style", "colour"}, "Attribute", "Value"),
 #"removed numbers" = Table.TransformColumns(#"Unpivoted Other Columns",{{"Attribute", each Text.Remove(_, List.Transform({48..57}, each Character.FromNumber(_))), type text}}),
 #"Grouped Rows" = Table.Group(#"removed numbers", {"style", "colour", "Attribute"}, {{"data", each Table.AddIndexColumn(_, "Index", 2, 1), type table}}),
 #"Expanded data" = Table.ExpandTableColumn(#"Grouped Rows", "data", {"Value", "Index"}, {"Value", "Index"}),
 #"Added Custom" = Table.AddColumn(#"Expanded data", "Custom", each if [Attribute]="description" then 1 else [Index]),
 #"Removed Columns" = Table.RemoveColumns(#"Added Custom",{"Index"}),
 #"Pivoted Column" = Table.Pivot(#"Removed Columns", List.Distinct(#"Removed Columns"[Attribute]), "Attribute", "Value"),
 #"Added Custom1" = Table.AddColumn(#"Pivoted Column", "parent", each if [description]=null then "child" else "parent"),
 #"Filled Down" = Table.FillDown(#"Added Custom1",{"description"}),
 #"Removed Columns1" = Table.RemoveColumns(#"Filled Down",{"Custom"})
 in  #"Removed Columns1"

在旋转之前在该列上使用索引和转换的替代版本

let Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
#"Unpivoted Other Columns" = Table.UnpivotOtherColumns(Source, {"style", "color", "desc"}, "Attribute", "Value"),
#"removed numbers" = Table.TransformColumns(#"Unpivoted Other Columns",{{"Attribute", each Text.Remove(_, List.Transform({48..57}, each Character.FromNumber(_))), type text}}),
#"Added Index" = Table.AddIndexColumn(#"removed numbers", "Index", 1, .5),
#"Rounded Down" = Table.TransformColumns(#"Added Index",{{"Index", Number.RoundDown, Int64.Type}}),
#"Pivoted Column" = Table.Pivot(#"Rounded Down", List.Distinct(#"Rounded Down"[Attribute]), "Attribute", "Value"),
#"Added Custom1" = Table.AddColumn(#"Pivoted Column", "parent", each "child"),

#"Add parent" = Table.Combine({Table.AddColumn(Table.Distinct(Table.SelectColumns(#"Added Custom1",{"style", "color", "desc"})), "parent", each "parent"), #"Added Custom1"}),

#"Removed Columns" = Table.RemoveColumns(#"Add parent",{"Index"}),
#"Reordered Columns" = Table.ReorderColumns(#"Removed Columns",{"style", "color", "upc", "size", "desc", "parent"}),
#"Sorted Rows" = Table.Sort(#"Reordered Columns",{{"style", Order.Ascending}, {"color", Order.Ascending}, {"upc", Order.Ascending}})
in  #"Sorted Rows"

Answer 2

这是另一种 Power Query 方法，它使用自定义函数来启用数据透视表的创建，而无需聚合，其中有多个项目。

检查 M-Code 和 Applied 步骤中的 cmets，以及自定义函数中的参考，以了解其工作原理：

要进入自定义函数，请选择

• New Query => Blank Query。
• 将查询从（可能）Query1 重命名为 fnPivotAll

M 码

//Rename Table3 to your actual table name
let Source = Excel.CurrentWorkbook(){[Name="Table3"]}[Content],

//Unpivot all except the style and color columns
 #"Unpivoted Other Columns" = Table.UnpivotOtherColumns(Source, {"style", "colour"}, "Attribute", "Value"),

//remove digits from the UPC and SIZE attributes
 remDigits = Table.TransformColumns(#"Unpivoted Other Columns",{
     {"Attribute", each Text.Remove(_, List.Transform({48..57}, each Character.FromNumber(_))), type text}}),

//Pivot on Attribute Column
//Custom function to use when there are multiple values for the column
pivot = fnPivotAll(remDigits,"Attribute","Value"),

//Fill in the blank descriptions
    #"Filled Down" = Table.FillDown(pivot,{"description"}),

//Group (by style, colour and description) to add a description row to each grouped table
    #"Grouped Rows" = Table.Group(#"Filled Down", {"style", "colour", "description"}, {
        {"All", each _, type table [style=text, colour=text, upc=number, size=any, description=text]},
        {"addRow", each Table.InsertRows(_, 0, {[style=[style]{0}, colour=[colour]{0}, upc=null, size=null, description=[description]{0}]})}       
        }),
    #"Removed Columns" = Table.RemoveColumns(#"Grouped Rows",{"style", "colour", "description", "All"}),

//expand the grouped table
    #"Expanded addRow" = Table.ExpandTableColumn(#"Removed Columns", "addRow", {"style", "colour", "upc", "size", "description"}, {"style", "colour", "upc", "size", "description"}),

//Add column for Parent or child
    #"Added Custom" = Table.AddColumn(#"Expanded addRow", "Parent", each if [upc] = null then "Parent" else "Child")
in
    #"Added Custom"

自定义函数
命名为 fnPivotAll -- 重命名查询

//credit: Cam Wallace  https://www.dingbatdata.com/2018/03/08/non-aggregate-pivot-with-multiple-rows-in-powerquery/

(Source as table,
    ColToPivot as text,
    ColForValues as text)=> 

let
     PivotColNames = List.Buffer(List.Distinct(Table.Column(Source,ColToPivot))),
     #"Pivoted Column" = Table.Pivot(Source, PivotColNames, ColToPivot, ColForValues, each _),
 
    TableFromRecordOfLists = (rec as record, fieldnames as list) =>
    
    let
        PartialRecord = Record.SelectFields(rec,fieldnames),
        RecordToList = Record.ToList(PartialRecord),
        Table = Table.FromColumns(RecordToList,fieldnames)
    in
        Table,
 
    #"Added Custom" = Table.AddColumn(#"Pivoted Column", "Values", each TableFromRecordOfLists(_,PivotColNames)),
    #"Removed Other Columns" = Table.RemoveColumns(#"Added Custom",PivotColNames),
    #"Expanded Values" = Table.ExpandTableColumn(#"Removed Other Columns", "Values", PivotColNames)
in
    #"Expanded Values"