Required to keep Min and Max values - Power Query

[Mohamed_Noor]

Dear All,

I would keep only the rank column as min and max value of details from the below table using power query

EXample

Name    RANK

ARP	1
ARP	2
ARP	3
ARP	4
ARP	5
DAS	1
DAS	2
DAS	3
SAD	1

Looking for

Name	RANK
ARP	1
ARP	5
DAS	1
DAS	3
SAD	1

[jgordon11]

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText(
        "i45WcgwKUNJRMlSK1YGxjZDYxkhsEyS2KZjt4hgM1wthGyGxIXqDHV0gamIB", BinaryEncoding.Base64), Compression.Deflate)), 
        type table [Name = (type nullable text), Rank = (type number)]),
    tbl = Table.Group(Source, {"Name"}, {{"Rank", each List.Distinct({List.Min([Rank]),List.Max([Rank])})}}),
    tbl1 =Table.ExpandListColumn(tbl, "Rank"),
    Result = Table.TransformColumnTypes(tbl1,{{"Rank", Int64.Type}})
in
    Result

[watkinnc · Accepted solution]

Nice. 

--Nate