I've been scratching my head over this issue and read through multiple forum posts but nothing has helped me so far. Sample data below:
I have four fields here:
Index - unsummarized column from my source (column)
Wafer Sum = Summarized column
Cumulative Sum = Running total of Wafer Sum per Index column (Quick Measure)
Flag = Toggles between Yes and No based on following condition ( [Cumulative Sum] >= [Wafer Sum] * 0.5) (Measure)
What I'm trying to accomplish is get the first occurrence when the Flag = "Yes" and return the Index value. In this case, the Index value returned should be 25. However, I cant use most of the functions such as EARLIER, MINX or CALCULATE since they are catered towards columns and not measures.
Any help on this issue is appreciated. Thanks in advance!