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Anonymous's avatar
Anonymous
Not applicable
5 years ago
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Faster Division/Multiplication using Merge same table Query - Power Query

I have a table of Columns containing Attribute counts. I have added a column that does row-wise summation of the Attribute column (denoted by Numbers) values. I want to Divide the Attribute columns b...
  • Jimmy801's avatar
    5 years ago

    Hello Anonymous 

     

    here some dynamic solution. Uses Unpivoting, Grouping and twice transforming of columns. The only parameter you have to change is the list in the Unpivot other (in case you have some additional columns). As you can see you can also remove the column "count" from your table.

    let
        Origine = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("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", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [ID = _t, CD = _t, #"6" = _t, #"5" = _t, #"4" = _t, #"3" = _t, #"1" = _t, Count = _t]),
        ChangeType = Table.TransformColumnTypes(Origine,{{"6", Int64.Type}, {"5", Int64.Type}, {"4", Int64.Type}, {"3", Int64.Type}, {"1", Int64.Type}}),
        #"Removed Columns" = Table.RemoveColumns(ChangeType,{"Count"}),
        #"Unpivoted Other Columns" = Table.UnpivotOtherColumns(#"Removed Columns", {"ID", "CD"}, "Attribute", "Value"),
        #"Grouped Rows" = Table.Group(#"Unpivoted Other Columns", {"CD"}, {{"AllRows", each _, type table [ID=text, CD=text, Attribute=text, Value=number]}}),
        TransformAllRows = Table.TransformColumns
        (
            #"Grouped Rows",
            {
                {
                    "AllRows",
                    (tbl)=> 
                    let
                        SumValue = List.Sum(tbl[Value]),
                        TransformTbl = Table.TransformColumns
                        (
                            tbl,
                            {
                                {
                                    "Value",
                                    each _ / SumValue
                                }
                            }
                        )
                    in 
                        TransformTbl
    
                }
            }
        ),
        #"Expanded AllRows" = Table.ExpandTableColumn(TransformAllRows, "AllRows", {"ID", "Attribute", "Value"}, {"ID", "Attribute", "Value"}),
        #"Pivoted Column" = Table.Pivot(#"Expanded AllRows", List.Distinct(#"Expanded AllRows"[Attribute]), "Attribute", "Value", List.Sum),
        #"Changed Type" = Table.TransformColumnTypes(#"Pivoted Column",{{"ID", Int64.Type}}),
        #"Sorted Rows" = Table.Sort(#"Changed Type",{{"ID", Order.Ascending}})
    in
        #"Sorted Rows"

     

    Copy paste this code to the advanced editor in a new blank query to see how the solution works.

    If this post helps or solves your problem, please mark it as solution (to help other users find useful content and to acknowledge the work of users that helped you)
    Kudoes are nice too

    Have fun

    Jimmy