topic Re: Power Query help in Power Query

Power Query help

VincenzoChean — Sat, 28 May 2022 23:52:21 GMT

Hi,

Does anyone know how i can convert this using power query or from excel.

The header is on the 1st column, it organize in a weekly fashion.

The spreadsheet was not designed by me. But i need import the data into PBI.

spreadsheet

Re: Power Query help

ImkeF — Sun, 29 May 2022 05:21:33 GMT

Hi VincenzoChean ,
please paste the following code into the advanced editor and follow the steps:

let Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content], #"Filtered Rows2" = Table.SelectRows(Source, each ([Column1] <> null)), #"Added Custom" = Table.AddColumn(#"Filtered Rows2", "Week", each if Text.StartsWith([Column1], "Week ") then [Column1] else null), #"Filled Down" = Table.FillDown(#"Added Custom",{"Week"}), #"Promoted Headers" = Table.PromoteHeaders(#"Filled Down", [PromoteAllScalars=true]), #"Unpivoted Other Columns" = Table.UnpivotOtherColumns(#"Promoted Headers", {"Week 1", "Week 1_1"}, "Attribute", "Value"), #"Renamed Columns" = Table.RenameColumns(#"Unpivoted Other Columns",{{"Attribute", "Date"}}), #"Filtered Rows" = Table.SelectRows(#"Renamed Columns", each not Text.StartsWith([Week 1], "Week ")), #"Filtered Rows1" = Table.SelectRows(#"Filtered Rows", each ([Value] <> "")), #"Renamed Columns1" = Table.RenameColumns(#"Filtered Rows1",{{"Week 1", "Row"}, {"Week 1_1", "Week"}}), #"Changed Type1" = Table.TransformColumnTypes(#"Renamed Columns1",{{"Value", type number}}) in #"Changed Type1"

File also attached.

Re: Power Query help

VincenzoChean — Sun, 29 May 2022 10:11:32 GMT

Thanks for assisting. i forgot there's another column that has to go onto it.

Can you please assist again ?

Power query help 2

Secondly, do i have to add to 'Data model' before i can use the power query editor ?

I tried going into advance editor but there's no data to select.

Thanks

Re: Power Query help

ImkeF — Sun, 29 May 2022 12:44:21 GMT

Hi VincenzoChean ,
will there always only be 7 columns with dates or could there be more or less? (This is relevant for how to determine the columns that shall be unpivoted.)
With regards to the m-code, in this video I show how to use code from the internet and paste it into the advanced editor: Dynamically solve parent child hierarchies in Power BI and Power Query - YouTube

Re: Power Query help

VincenzoChean — Sun, 29 May 2022 12:58:04 GMT

Yes it will be. Thanks a lot.

Re: Power Query help

ImkeF — Sun, 29 May 2022 14:09:20 GMT

Good, so you add the category-field to the unpivot others step:

// Table1 let Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content], #"Filtered Rows2" = Table.SelectRows(Source, each ([Column1] <> null)), #"Added Custom" = Table.AddColumn(#"Filtered Rows2", "Week", each if Text.StartsWith([Column1], "Week ") then [Column1] else null), #"Filled Down" = Table.FillDown(#"Added Custom",{"Week"}), #"Promoted Headers" = Table.PromoteHeaders(#"Filled Down", [PromoteAllScalars=true]), #"Unpivoted Other Columns" = Table.UnpivotOtherColumns(#"Promoted Headers", {"Week 1", "Week 1_1", "category"}, "Attribute", "Value"), #"Renamed Columns" = Table.RenameColumns(#"Unpivoted Other Columns",{{"Attribute", "Date"}}), #"Filtered Rows" = Table.SelectRows(#"Renamed Columns", each not Text.StartsWith([Week 1], "Week ")), #"Filtered Rows1" = Table.SelectRows(#"Filtered Rows", each ([Value] <> "")), #"Renamed Columns1" = Table.RenameColumns(#"Filtered Rows1",{{"Week 1", "Row"}, {"Week 1_1", "Week"}}), #"Changed Type1" = Table.TransformColumnTypes(#"Renamed Columns1",{{"Value", type number}, {"category", type text}}) in #"Changed Type1"

Re: Power Query help

KT_Bsmart2gethe — Sun, 29 May 2022 15:14:07 GMT

Hi VincenzoChean ,

Below transformation code should be dynamic enough to turn the data into structured data formate:

let

//Get Source
Source = Excel.CurrentWorkbook(){[Name="Table2"]}[Content],

//Unpivot other column other than the first one (i.e. week1,2, column)

#"Unpivoted Other Columns" = Table.UnpivotOtherColumns(Source, {"Column1"}, "Attribute", "Value"),

//Add conditional column to get "Week", then fill down

#"Added Custom1" = Table.AddColumn(#"Unpivoted Other Columns", "Custom", each if Text.StartsWith([Column1],"Week") then [Column1] else null),
#"Filled Down" = Table.FillDown(#"Added Custom1",{"Custom"}),

//Filter for only the header rows

ColumnTbl = Table.SelectRows(#"Filled Down", each Text.StartsWith([Column1],"Week")),

//Filter for all row except header rows

NonColumnTbl = Table.SelectRows(#"Filled Down", each not Text.StartsWith([Column1],"Week")),

//Join the main table (the content without header) with header table to get table

#"Merged Queries" = Table.NestedJoin(NonColumnTbl, {"Custom", "Attribute"}, ColumnTbl, {"Custom", "Attribute"}, "NonColumnTbl", JoinKind.LeftOuter),
#"Expanded NonColumnTbl" = Table.ExpandTableColumn(#"Merged Queries", "NonColumnTbl", {"Value"}, {"Date"}),

//Rename header (rename to whatever name you want)

#"Renamed Columns" = Table.RenameColumns(#"Expanded NonColumnTbl",{{"Column1", "Measure / Title"}, {"Custom", "Week Number"}}),

//Remove access columns
#"Removed Columns1" = Table.RemoveColumns(#"Renamed Columns",{"Attribute"})

in
#"Removed Columns1"

Regards

Re: Power Query help

KT_Bsmart2gethe — Mon, 30 May 2022 04:29:53 GMT

Hi VincenzoChean ,

I just realised that you have attached the source file.

See below link for the solution.

Solution

Regards

Re: Power Query help

wdx223_Daniel — Mon, 30 May 2022 04:49:08 GMT

= Table.Combine(Table.Group(Source,"Column1",{"n",each let a=Table.PromoteHeaders(Table.SelectRows(_,each [Column1]<>null)),b=Table.UnpivotOtherColumns(a,List.RemoveRange(Table.ColumnNames(a),1,7),"Date","x") in Table.RenameColumns(Table.Pivot(b,List.Distinct(Table.ToColumns(b){0}),Table.ColumnNames(b){0},"x"),{{"dates","category"}},1)},0,(x,y)=>Byte.From(Text.StartsWith(y??"","Week ")))[n])