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Hi I am trying to learn how to DAX and I have been trying to figure this out for the last couple of days, but getting nowhere.I am trying to subtract the value of the previous row from the of current row (which I appear to have managed) and then get the overall MAX. In the example below returning 15.
My questions are:1) Is the LOOKUPVALUE the best way to get the prevVal or are there better ways of doing this?2) How do I then get the MAX?
I tried MAXX around the RETURN formula but wasn't getting anywhere...Any guidance is appreciated.
Go to Solution.
I tried to create a sample pbix file like below.
Please check the below picture and the attached pbix file.
Expected result measure: =
SUM ( Data[Value] ),
FILTER ( Data, Data[Index ID] = EARLIER ( Data[Index ID] ) - 1 )
[@prevvalue] <> BLANK ()
"@diff", Data[Value] - [@prevvalue]
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