Index Column & Fill Down

[tomshaw83]

Hello,

I am trying to fill down with a repeating index column as below. I know how to do the 2 things independently (insert an index column, and fill down) but become unstuck when I want to do them together.

What I have	What I want
1
	1
	2
	3
	4
1
	1
	2
	3
	4
1
	1
	2
	3
	4

Any help would be appreciated

Thank you

[tomshaw83]

Thank you

[mussaenda · Accepted solution]

Hi @tomshaw83 ,

You can group you data according hoe you want the index to filldown,

the before expanding the columns, add a column, Table.AddIndexColumn( [ColumnName], "IndexperCategory")

You can refer to the code below

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WSlSK1cFGJuEgk7GRsQA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Column1 = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Column1", type text}}),
    #"Added Index" = Table.AddIndexColumn(#"Changed Type", "Index", 1, 1, Int64.Type),
    #"Grouped Rows" = Table.Group(#"Added Index", {"Column1"}, {{"Count", each _, type table [Column1=nullable text, Index=number]}}),
    #"Added Custom" = Table.AddColumn(#"Grouped Rows", "Custom", each Table.AddIndexColumn([Count], "IndexperCategory", 1)),
    #"Expanded Custom" = Table.ExpandTableColumn(#"Added Custom", "Custom", {"Index", "IndexperCategory"}, {"Index", "IndexperCategory"})
in
    #"Expanded Custom"

 Hope this helps!