Trailling 13 weeks

[AE_pbi]

Hey guys, i'm trying to filter revenue data by previous 13 weeks till date, I tried filtering report date from dim_date table using relate date > 13 weeks but my visual stays the same or it displays date by the previous 10 days. how do i create a dax or filter that filters by the previous 13 weeks?.

[amitchandak · Accepted solution]

@AE_pbi , With help from separate week/Date table

Week Rank = RANKX(all('Date'),'Date'[Week Start date],,ASC,Dense)
OR
Week Rank = RANKX(all('Date'),'Date'[Year Week],,ASC,Dense) //YYYYWW format

meausres

Last 13 weeks = CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Week Rank]>=max('Date'[Week Rank])-13 && 'Date'[Week Rank]<=max('Date'[Week Rank])))

Last 13 weeks =
var _max1 = maxx(allselected('Table'), 'Table'[date])
var _max = maxx(filter(all(date), date[date] = _max1), week[Rank])
return
CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Week Rank]>=_max-13 && 'Date'[Week Rank]<=_max))

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