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Anonymous's avatar
Anonymous
Not applicable
5 years ago
Solved

Filter out top 3 rows based on same timestamp

Hello,   Im new to power bi, and would be very grateful if someone could help me out.  I have table with 3 columns timestamp, procedure, average_cpu. Everytime when data gets generated its ...
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  • AlexisOlson's avatar
    AlexisOlson
    5 years ago

    Do a Group By on the timestamp column with a new column that keeps all rows for each separate time stamp.

     

    This will generate a step with code that looks like this:

     

    = Table.Group(#"Changed Type", {"timestamp"}, {{"Top3", each _, type table}})

     

    We want to modify this slightly using Table.MaxN:

     

    = Table.Group(#"Changed Type", {"timestamp"}, {{"Top3", each Table.MaxN(_, "avergae_cpu", 3), type table}})

     

     

    All that's left is to expand the new Top3 table column by clicking the expand button in the top right corner and pick which columns you want.

     

Fowmy's avatar
Fowmy
Icon for Super User rankSuper User
5 years ago

Anonymous 

Create a new table with the following code:

FILTER(
    ADDCOLUMNS (
        Table1,
        "Top3",
            TABLE1[avergae, cpu]
                IN SELECTCOLUMNS (
                    TOPN (
                        3,
                        ALLEXCEPT ( Table1, table1[timestamp] ),
                        CALCULATE ( MAX ( table1[avergae, cpu] ) )
                    ),
                    Table1[avergae, cpu]
                )
    ),
    [Top3] = TRUE ()
)