Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Earn the coveted Fabric Analytics Engineer certification. 100% off your exam for a limited time only!

Reply
Anonymous
Not applicable

Creating a hierarchy from indented column

I have the following table: 
New originalNOW.PNG

 

It has a column that contains levels of indentation signifying a hierarchical relationship. I'd like to ask how this could be unwrapped into the following table please?

 

NewOG.PNG

 

Perhaps this should be sorted out with the help of Python script? All help and tips are appreciated.

 

Thank you!

1 ACCEPTED SOLUTION

Hi @Anonymous 

 

Try this.

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WcgQCpVidaCUFJyCAsBScDUEAynE0AgEYxxgEIBxnICBaQywA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type text) meta [Serialized.Text = true]) in type table [Block = _t]),
    #"Added Index" = Table.AddIndexColumn(Source, "Index", 0, 1),
    #"Added Custom" = Table.AddColumn(#"Added Index", "Level", each "Block Level " & Number.ToText( List.Count( List.Accumulate( Text.ToList( [Block] ), {" "}, ( s,a ) => if a = List.Last(s) then s & {a} else s ) ) - 1 ) ),
    #"Trimmed Text" = Table.TransformColumns(#"Added Custom",{{"Block", Text.Trim, type text}}),
    #"Pivoted Column" = Table.Pivot(#"Trimmed Text", List.Distinct(#"Trimmed Text"[Level]), "Level", "Block"),
    #"Filled Down" = Table.FillDown(#"Pivoted Column",{"Block Level 0", "Block Level 1"}),
    #"Filtered Rows" = Table.SelectRows(#"Filled Down", each ([Block Level 2] <> null))
in
    #"Filtered Rows"

 

Best Regards,
Mariusz

If this post helps, then please consider Accepting it as the solution.

Please feel free to connect with me.
LinkedIn

 

View solution in original post

5 REPLIES 5
Mariusz
Community Champion
Community Champion

Hi @Anonymous 

 

You can use power query to transform.

 

Please see the attached file.

 

Best Regards,
Mariusz

If this post helps, then please consider Accepting it as the solution.

Please feel free to connect with me.
LinkedIn

 

Anonymous
Not applicable

Apologies @Mariusz , perhaps my example problem was too generic. I have updated my question to reflect the true scenario which i have where I believe your specific solution might not work.

Hi @Anonymous 

 

Try this.

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WcgQCpVidaCUFJyCAsBScDUEAynE0AgEYxxgEIBxnICBaQywA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type text) meta [Serialized.Text = true]) in type table [Block = _t]),
    #"Added Index" = Table.AddIndexColumn(Source, "Index", 0, 1),
    #"Added Custom" = Table.AddColumn(#"Added Index", "Level", each "Block Level " & Number.ToText( List.Count( List.Accumulate( Text.ToList( [Block] ), {" "}, ( s,a ) => if a = List.Last(s) then s & {a} else s ) ) - 1 ) ),
    #"Trimmed Text" = Table.TransformColumns(#"Added Custom",{{"Block", Text.Trim, type text}}),
    #"Pivoted Column" = Table.Pivot(#"Trimmed Text", List.Distinct(#"Trimmed Text"[Level]), "Level", "Block"),
    #"Filled Down" = Table.FillDown(#"Pivoted Column",{"Block Level 0", "Block Level 1"}),
    #"Filtered Rows" = Table.SelectRows(#"Filled Down", each ([Block Level 2] <> null))
in
    #"Filtered Rows"

 

Best Regards,
Mariusz

If this post helps, then please consider Accepting it as the solution.

Please feel free to connect with me.
LinkedIn

 

Anonymous
Not applicable

Thank you very much for your help so far @Mariusz! Your solution is very close however I can't seem to sort out the final format which currently is this:

Mariusz.PNG

I think it may be due to different indentation levels between your source data and mine? 

@Mariusz's solution helped me to start digging into M functions. 

I think I'll replace #"Added Custom" step with the next one, as you have to calculate level by number of leading spaces.

Is just my first try into M functions, hope this will help. 

#"Added Custom" = Table.AddColumn(#"Added Index", "Level"
, each "Block Level " & Number.ToText(Text.Length([Block])-Text.Length(Text.TrimStart([Block])))),

Helpful resources

Announcements
April AMA free

Microsoft Fabric AMA Livestream

Join us Tuesday, April 09, 9:00 – 10:00 AM PST for a live, expert-led Q&A session on all things Microsoft Fabric!

March Fabric Community Update

Fabric Community Update - March 2024

Find out what's new and trending in the Fabric Community.

Top Solution Authors
Top Kudoed Authors