Forum Discussion
Power bi previous date if blank
Hi, I have 2 different tables, one date table 'Datum"[Date] and one table showing a quantity 'T_Part[InvQty] on a certain date of a certain partcode 'T_Part[Partcode]', both tables are related by dat...
Greg_Deckler
Community Champion
Community Championddijstelbloem See my article on Mean Time Between Failure (MTBF) which uses EARLIER: http://community.powerbi.com/t5/Community-Blog/Mean-Time-Between-Failure-MTBF-and-Power-BI/ba-p/339586.
The basic pattern is:
Column =
VAR __Current = [Value]
VAR __PreviousDate = MAXX(FILTER('Table','Table'[Date] < EARLIER('Table'[Date])),[Date])
VAR __Previous = MAXX(FILTER('Table',[Date]=__PreviousDate),[Value])
RETURN
__Current - __Previous