Transpose Challenge

Hi Anonymous ,

Like this?

Advanced editor:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("ZcvBCcAwDATBXu5tge4kpRmj/ttIjMEQ/NjXsHOC7plPJQa0ctEoC6LHT2Orbq1P8ihNl9bWWK+E7hc=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [PersonID = _t, PerformanceRating = _t, RatingDate = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"PersonID", Int64.Type}, {"PerformanceRating", Int64.Type}, {"RatingDate", type date}}),
    #"Sorted Rows" = Table.Sort(#"Changed Type",{{"PersonID", Order.Ascending}, {"RatingDate", Order.Ascending}}),
    #"Grouped Rows" = Table.Group(#"Sorted Rows", {"PersonID"}, {{"Data", each _, type table [PersonID=nullable number, PerformanceRating=nullable number, RatingDate=nullable date]}}),
    Custom1 = Table.TransformColumns(#"Grouped Rows",{"Data", each Table.Pivot(Table.TransformColumnTypes(_, {{"RatingDate", type text}}, "en-US"),List.Distinct(Table.TransformColumnTypes(_, {{"RatingDate", type text}}, "en-US")[RatingDate]), "RatingDate", "PerformanceRating", List.Max)})
in
    Custom1

Best Regards,
Gao
Community Support Team

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