Cumulative distinct count filtered by last value - DAX
问题 I have a dataset: month name flag 1 abc TRUE 2 xyz TRUE 3 abc TRUE 4 xyz TRUE 5 abc FALSE 6 abc FALSE I want to calculate month-cumulative distinct count of 'name' filtered by last 'flag' value (TRUE). I.e. I want to have a result: month count 1 1 2 2 3 2 4 2 5 1 6 1 In months 5 and 6 'abc' should be excluded because the flag switched to 'FALSE' in month 5. I am trying to achieve something using examples given here: http://www.daxpatterns.com/cumulative-total/ . But I am struggling terribly.