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I have a requirement where I have to check for each category, and if for that category any flag is "Yes', then I need another column which says "True" for all values of that category.

eg.

Column1 Flag Final_Answer A Yes True A No True A No True B No False B No False C No False

Notice that only if a category in Column1 has the value "Yes" in Flag then Final_Answer will be "True" for all the rows for the category. Since, "B" and "C" do not have "Yes', the corresponding value in Final_answer is "False:.

How can I achieve this in DAX powerbi? Any help is appreciate. Thanks

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Sure, you need to run a calculate to help iterate over the rest of the table.

CalculatedFinalAnswer = VAR col = TheTable[Column1] RETURN IF (CALCULATE(COUNTROWS(TheTable), ALL(TheTable), FILTER(TheTable, TheTable[Column1] = col), FILTER(TheTable, TheTable[Flag] = "Yes")), TRUE(), FALSE())

I added an index column from PowerQuery to help with display.

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