Require a scalar value based on the latest week number

[akhaliq7]

I have a income field that needs to be returned (scalar value) filtered on the latest week. E.G. table1[income], table 2[week number]. 

[tamerj1 · Accepted solution]

Hi @akhaliq7 

I suppose table2 filters table1. Then

Last Week Income =
VAR LastDateWithIncome =
    CALCULATE ( MAX ( table1[Date] ), REMOVEFILTERS () )
VAR LastWeekWithIncome =
    WEEKNUM ( LastDateWithIncome, 2 )
RETURN
    CALCULATE ( SUM ( table1[income] ), table2[week number] = LastWeekWithIncome )

[amitchandak]

@akhaliq7 , week based today

This Week today =
var _st = today() +-1*WEEKDAY(today(),2)+1
var _end =today()+ 7-1*WEEKDAY(today(),2)
return
CALCULATE(SUM(Sales[Sales Amount]),filter('Date','Date'[Date]>= _st && 'Date'[Date]<=_end ))

//use all('Date') if need in filter

else you need columns and measures

new columns
Week Start date = 'Date'[Date]+-1*WEEKDAY('Date'[Date],2)+1
Week End date = 'Date'[Date]+ 7-1*WEEKDAY('Date'[Date],2)
Week Rank = RANKX(all('Date'),'Date'[Week Start date],,ASC,Dense)
OR
Week Rank = RANKX(all('Date'),'Date'[Year Week],,ASC,Dense) //YYYYWW format

measures
This Week = CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Week Rank]=max('Date'[Week Rank])))
Last Week = CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Week Rank]=max('Date'[Week Rank])-1))

Power BI — Week on Week and WTD
https://medium.com/@amitchandak.1978/power-bi-wtd-questions-time-intelligence-4-5-98c30fab69d3
https://community.powerbi.com/t5/Community-Blog/Week-Is-Not-So-Weak-WTD-Last-WTD-and-This-Week-vs-La...
https://www.youtube.com/watch?v=pnAesWxYgJ8