Ir contando repetidos con power Query

Hello lucho 

you can use the groupfunction and apply the function to count rows.

Here an example where I first make distinct values of a table and then a row count with table.group using the basic table.

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WclSK1UElnXCQzjAyFgA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [DoubleValues = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"DoubleValues", type text}}),
    #"Removed Duplicates" = Table.Distinct(#"Changed Type"),
    Count = Table.Group
    (
        #"Changed Type",
        "DoubleValues",
        {{"Count", each List.Count(_[DoubleValues])}},
        GroupKind.Global
    )
in
    Count

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