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Hi,
I'm trying to return a single record per asset/date according to its source, with one source favoured over another (discarded record bolded below)...
Raw table:
ASSET | DATE | SOURCE | VALUE |
Asset1 | 01/06/2021 | A | 10 |
Asset1 | 01/06/2021 | B | 15 |
Asset1 | 02/06/2021 | B | 12 |
Asset2 | 01/06/2021 | A | 23 |
Asset2 | 02/06/2021 | A | 20 |
Asset3 | 01/06/2021 | C | 50 |
Asset4 | 01/06/2021 | D | 70 |
Desired outcome:
ASSET | DATE | SOURCE | VALUE |
Asset1 | 01/06/2021 | A | 10 |
Asset1 | 02/06/2021 | B | 12 |
Asset2 | 01/06/2021 | A | 23 |
Asset2 | 02/06/2021 | A | 20 |
Asset3 | 01/06/2021 | C | 50 |
Asset4 | 01/06/2021 | D | 70 |
I don't need to know the final [SOURCE] in the visualisation, however if source A doesnt have a value for the Asset/Date combination, it should then fallback to source B. There's also a [SOURCE] C & D, however I'm happy to ignore them as only sources A & B overlap in my example.
Solved! Go to Solution.
Hi @PELNZ_kjm
Here is one way
let
Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WciwuTi0xVNJRMjDUNzDTNzIwAnEcgdjQQClWB5cCJ5ACUzQFRugKjBAKjLBZYWSMpsAIXQGSG4zRTXAGYlMkBSboClyA2ByoIBYA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [ASSET = _t, DATE = _t, SOURCE = _t, VALUE = _t]),
#"Changed Type" = Table.TransformColumnTypes(Source,{{"ASSET", type text}, {"DATE", type date}, {"SOURCE", type text}, {"VALUE", Int64.Type}}),
#"Grouped Rows" = Table.Group(#"Changed Type", {"ASSET", "DATE"}, {{"allrows", each _, type table }}),
#"Added Custom" = Table.AddColumn(#"Grouped Rows", "Custom", each if List.ContainsAll( [allrows][SOURCE],{"A","B"}) then Table.SelectRows([allrows], each [SOURCE] <>"B") else [allrows]),
#"Removed Other Columns" = Table.SelectColumns(#"Added Custom",{"Custom"}),
#"Expanded Custom" = Table.ExpandTableColumn(#"Removed Other Columns", "Custom", {"ASSET", "DATE", "SOURCE", "VALUE"}, {"ASSET", "DATE", "SOURCE", "VALUE"})
in
#"Expanded Custom"
Hi @PELNZ_kjm
Here is one way
let
Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WciwuTi0xVNJRMjDUNzDTNzIwAnEcgdjQQClWB5cCJ5ACUzQFRugKjBAKjLBZYWSMpsAIXQGSG4zRTXAGYlMkBSboClyA2ByoIBYA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [ASSET = _t, DATE = _t, SOURCE = _t, VALUE = _t]),
#"Changed Type" = Table.TransformColumnTypes(Source,{{"ASSET", type text}, {"DATE", type date}, {"SOURCE", type text}, {"VALUE", Int64.Type}}),
#"Grouped Rows" = Table.Group(#"Changed Type", {"ASSET", "DATE"}, {{"allrows", each _, type table }}),
#"Added Custom" = Table.AddColumn(#"Grouped Rows", "Custom", each if List.ContainsAll( [allrows][SOURCE],{"A","B"}) then Table.SelectRows([allrows], each [SOURCE] <>"B") else [allrows]),
#"Removed Other Columns" = Table.SelectColumns(#"Added Custom",{"Custom"}),
#"Expanded Custom" = Table.ExpandTableColumn(#"Removed Other Columns", "Custom", {"ASSET", "DATE", "SOURCE", "VALUE"}, {"ASSET", "DATE", "SOURCE", "VALUE"})
in
#"Expanded Custom"
Thanks Vera, I've discovered further issues with visualising due to the data structure, however this achieves exactly what I outlined 🙂
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