Current Week vs Prior Week (same year)

[Anonymous]

I would like to create a line chart showing showing my current week vs last week of a total value. I know I need 2 measures here, but the week time base equations I've tried are not working. 

I have my date calendar with weeknumber and day of the week number (Sunday starts the week for us). 

Has anyone had any break throughs with getting this to work? Any example I've come across is not working for me. Thanks!

[v-alq-msft]

Hi, @Anonymous 

If you take the answer of someone, please mark it as the solution to help the other members who have same problems find it more quickly. If not, let me know and I'll try to help you further. Thanks.

Best Regards

Allan

[v-alq-msft]

Hi, @Anonymous 

Based on your description, I created data to reproduce your scenario. The pbix file is attached in the end.

Table:

You may create a calculated column and a measure as bleow.

Calculated column:
Weeknum = WEEKNUM('Table'[Date])

Measure:
LastWeekValue = 
var _lastweeknum = SELECTEDVALUE('Table'[Weeknum])-1
var _result = 
CALCULATE(
    SUM('Table'[Value]),
    'Table'[Weeknum] = _lastweeknum
)
return
_result

Result:

Best Regards

Allan

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[edhans · Accepted solution]

I've done some extensive work with weeks. What I use is the following logic:

• Get the current week number for your data. Something like this:

Prior Year Sales = 
VAR CurrentWeek =
    MAXX(
        'Sales',
        RELATED( 'Date'[Week of Year] )
    )
VAR CurrentYear =
    MAXX(
        'Sales',
        RELATED( 'Date'[Year] )
    )
VAR PriorYearSales =
    SUMX(
        FILTER(
            ALL( Sales ),
            RELATED( 'Date'[Year] ) = CurrentYear - 1
                && RELATED( 'Date'[Week of Year] ) = CurrentWeek
        ),
        Sales[SubTotal]
    )
RETURN
    PriorYearSales

You an see the 2011 week sales 23-26 are showing in the prior year for 2012 for those same weeks.

Here is a link to my PBIX file if you want to tinker with it.

[parry2k]

@Anonymous so many posts and videos on this, some links here, if none work, share data and explain what is not working

https://www.youtube.com/watch?v=jclWnA7pEvY

https://www.youtube.com/watch?v=2ya3pdgemP4

https://www.youtube.com/watch?v=jBPLm5BHl2c

I would ❤ Kudos if my solution helped. 👉 If you can spend time posting the question, you can also make efforts to give Kudos whoever helped to solve your problem. It is a token of appreciation!