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jimmyfromus's avatar
jimmyfromus
Helper III
5 years ago
Solved

Make certain rows into headers

Hi,    I've the following table:  data    Numbers id 40 number 3434 year 2007 rank 23 school 1 uni 1 14 uni 2 10 id 343 number 78778 year 2007 rank 87 ...
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  • CNENFRNL's avatar
    CNENFRNL
    5 years ago

    jimmyfromus , StefanoGrimaldi , as long as each group of records starts with ID like this, this solution applies; order and presence of other fields (number, year, rank ...) make no difference.

     

    let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WykxR0lEyNDRUitWJVsorzU1KLQIKGJsYm4BFKlMTQXwjAwNzML8oMS8bxDcG84qTM/Lzc0AGgLmleZkKhiCeCZxrBOIagLlgm4yMjPCZa2GOaq4pqknGBqjONLcwN7dAsdoIYZWxsTFNvGBigj1oSHJkLAA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [data = _t, Numbers = _t]),

    Rearrange = Table.Combine(List.Transform(Table.Group(Source, "data", {{"grouped", each _}}, GroupKind.Local, (s,c)=>Number.From(c="id"))[grouped], each Table.PromoteHeaders(Table.Transpose(_))))
in
    Rearrange

     

CNENFRNL's avatar
CNENFRNL
Community Champion
5 years ago

StefanoGrimaldi , better to learn more and to comment less

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WykxR0lEyMVCK1YlWyivNTUotAvKNTYxNwCKVqYkgvpGBgTmYX5SYlw3iG4N5xckZ+fk5QL4hmFual6lgCOKZwLlGIC7EcLBFQIPxmWthjmquKapJxmjONLcwN7dAsdpIKTYWAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [data = _t, Numbers = _t]),

    Custom1 = Table.Combine(List.Transform(Table.Split(Source,7), each Table.PromoteHeaders(Table.Transpose(_),[PromoteAllScalars=true])))
in
    Custom1
StefanoGrimaldi's avatar
StefanoGrimaldi
Resident Rockstar
5 years ago

I asked because I see your solution does work, but work under one scenario, I asked will it work in the scenario I put in? cause if the case if the data isnt stored in cronological order ifor each item on the file for example that code wont know how to assign to each row each value, or will it and how? would be learning more if you can answer that question 🙂 as you can see the guy that posted the topic its saying about that same topic of the cronological order of the data and isnt right.