I have a chart, where I would like to show the previous 16 weeks. It seems the dates/calendar table is not registrered as a number value, rather than dates, so the relative date filter is not an option.
Can anyone help me fix this? I'm working in a SSAS live connection, so I feel like my options are limited.
You may try this way like below:
For you are working in a SSAS live connection, all the modeling process need to be done in ssas, so you need to add a week
column for date field.
Then create a measure in power bi like this:
Measure = VAR __LASTWEEK = MAX(Table2[Week]) RETURN SUMX( FILTER(ALL(Table2),Table2[Week]<=__LASTWEEK&&Table2[Week]>=__LASTWEEK-3), CALCULATE(SUM('Table2'[Qty])) )