Mcode: Custom Column- Evaluate IF Text Column has Number Value

Hello Anonymous 

you can add a custom column with this formula (you have to replace "Column1" with your real column name)

if List.AllTrue(List.Transform(Text.ToList([Column1]), each try Value.Is(Number.From(_), type number) otherwise false)) then "numeric" else "alpha numeric"

Here the complete code example

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WcjRUitWJVjI2BlNRUWDKACIIlXN2hshBeJaWECUGSrGxAA==", 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 Custom" = Table.AddColumn(#"Changed Type", "Custom", each if List.AllTrue(List.Transform(Text.ToList([Column1]), each try Value.Is(Number.From(_), type number) otherwise false)) then "numeric" else "alpha numeric")
in
    #"Added Custom"

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

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Kudoes are nice too

Have fun

Jimmy