Facing issue building last year weekend date

[Anonymous]

Want to calculate Last Year weekend dates with respect to week number. SO This years and last years weeknd dates should be alligned to respective week number.

Below is the excel sheet which is to be replicated exactly in power BI,  but facing errors in Power BI while creating formula for last year weekend column.

[v-tangjie-msft · Accepted solution]

Hi @Anonymous ,

According to your description, here are my steps you can follow as a solution.

(1) This is my test data. 

(2) We can create a calculated column.

LY Weekend Dates = 
VAR a =
    ADDCOLUMNS (
        CALENDAR (
            DATE ( YEAR ( [date] ) - 1, 1, 1 ),
            DATE ( YEAR ( [date] ), 12, 31 )
        ),
        "WEEKNUM", WEEKNUM ( [Date], 2 ),
        "WEEKDAY", WEEKDAY ( [Date], 2 ),
        "Year", YEAR ( [Date] )
    )
RETURN
    MAXX (
        FILTER (
            a,
            [WEEKNUM] = EARLIER ( 'Table'[WEEKNUM] )
                && [WEEKDAY] = 7
                && [Year]
                    = YEAR ( EARLIER ( 'Table'[date] ) ) - 1
        ),
        [Date]
    )

(3) Then the result is as follows.

If the above one can't help you get the desired result, please provide some sample data in your tables (exclude sensitive data) with Text format and your expected result with backend logic and special examples. It is better if you can share a simplified pbix file. Thank you.

Best Regards,

Neeko Tang

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