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Vincent_Isoz
Frequent Visitor

DAX Query: Relative difference visible previous day

Hi

 

I have the following query table yet (i'm not interested in a Table or Matrix visual):

 

2023-10-03 21_10_16-Solutions_Power_BI_Desktop_DAX_General.jpg

 

How can i get a new column with the relative difference of one of the visible day with the previous visible day?

 

Thanks for your help

1 ACCEPTED SOLUTION
OwenAuger
Super User
Super User

Hi @Vincent_Isoz 

You can use the OFFSET function.

Here is an example:

Test =
VAR SummarizedTable =
    SUMMARIZE (
        'Table Principale',
        [Date Commande],
        "Somme Cash-Flow", SUM ( 'Table Principale'[Prix total avec rabais] )
    )
VAR AddPrevious =
    ADDCOLUMNS (
        SummarizedTable,
        "Somme Cash-Flow Previous",
            -- Guaranteed to be a single row
            SELECTCOLUMNS (
                OFFSET ( -1, SummarizedTable, ORDERBY ( 'Table Principale'[Date Commande] ) ),
                [Somme Cash-Flow]
            )
    )
RETURN
    AddPrevious

I would also recommend changing SUMMARIZE (...) to ADDCOLUMNS ( SUMMARIZE (... ), ... ), but that's a best practice suggestion rather than a necessity here.

 

Regards


Owen Auger
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View solution in original post

2 REPLIES 2
OwenAuger
Super User
Super User

Hi @Vincent_Isoz 

You can use the OFFSET function.

Here is an example:

Test =
VAR SummarizedTable =
    SUMMARIZE (
        'Table Principale',
        [Date Commande],
        "Somme Cash-Flow", SUM ( 'Table Principale'[Prix total avec rabais] )
    )
VAR AddPrevious =
    ADDCOLUMNS (
        SummarizedTable,
        "Somme Cash-Flow Previous",
            -- Guaranteed to be a single row
            SELECTCOLUMNS (
                OFFSET ( -1, SummarizedTable, ORDERBY ( 'Table Principale'[Date Commande] ) ),
                [Somme Cash-Flow]
            )
    )
RETURN
    AddPrevious

I would also recommend changing SUMMARIZE (...) to ADDCOLUMNS ( SUMMARIZE (... ), ... ), but that's a best practice suggestion rather than a necessity here.

 

Regards


Owen Auger
Did I answer your question? Mark my post as a solution!
Blog
Twitter
LinkedIn

Thanks a lot! That works like a charm.

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