Forum Discussion
Finding previous date's value in one column based on another column
Hello everyone,
I really got stuck with this one. I can't find any help for the PREVIOUSDAY function. I need to add a column with the previous date's value for a certain value in another column. My dates are not continuous. Example:
Segment Date UniqueOpenRate
WiFi 1/3/2020 15%
Hotel concierge 1/3/2020 14%
WiFi 2/3/2020 16%
Hotel Concierge 2/3/2020 13%
I need to be able to add a new column where I set the previous value for each Segment:
Segment Date PrevOpenRate
WiFi 2/3/2020 15%
How can I do that?
Thanks!
Stan
2 Replies
- az38
Community Champion
Hi Anonymous
try Measure
Measure = var _curDate = MAX('Table'[Date]) var _prevDate = CALCULATE(MAX('Table'[Date]), ALLEXCEPT('Table','Table'[Segment]),'Table'[Date] < _curDate) RETURN CALCULATE(SUM('Table'[UniqueOpenRate]), FILTER(ALLEXCEPT('Table','Table'[Segment]),'Table'[Date] = _prevDate))
