Forum Discussion

TonyGu's avatar
TonyGu
Helper I
4 years ago
Solved

DAX Column

I would like to have the Define column return 1, if ID only appear 1 time in that year. If that ID appear twice or more, return 1 for the earliest Month, and 0 for the rest month. Below is the result I want to get. Not sure if it is doable.

 

 

 

 

  • AlexisOlson's avatar
    AlexisOlson
    4 years ago

    You can just check if the month is the first one that year or not.

     

    Try this as a calculated column:

    Define =
VAR _FirstMonth =
    CALCULATE (
        MIN ( Table1[MONTH] ),
        ALLEXCEPT ( Table1, Table1[ID], Table1[YEAR] )
    )
RETURN
    IF ( Table1[MONTH] = _FirstMonth, 1, 0 )

5 Replies

  • AlexisOlson's avatar
    AlexisOlson
    Super User
    4 years ago

    You can just check if the month is the first one that year or not.

     

    Try this as a calculated column:

    Define =
VAR _FirstMonth =
    CALCULATE (
        MIN ( Table1[MONTH] ),
        ALLEXCEPT ( Table1, Table1[ID], Table1[YEAR] )
    )
RETURN
    IF ( Table1[MONTH] = _FirstMonth, 1, 0 )
  • Greg_Deckler's avatar
    Greg_Deckler
    Community Champion
    4 years ago

    TonyGu Maybe:

    Define =
  VAR __ID = [ID]
  VAR __Year = [Year]
  VAR __Month = [Month]
  VAR __MinMonth = MINX(FILTER('Table',[ID] = __ID && [Year] = __Year),[Month])
  VAR __Table = SUMMARIZECOLUMNS('Table'[ID],'Table'[Year],"__Count",COUNTROWS('Table'))
RETURN
  SWITCH(TRUE(),
    COUNTROWS(FILTER(__Table,[ID] = __ID && [Year] = __Year)) = 1,1,
    __Month = __MinMonth, 1,
    0
  )
  • Whitewater100's avatar
    Whitewater100
    Solution Sage
    4 years ago

    Hello:

    Give this a try. Hope it helps..

     

    Define =
    var yr = Data[Year]
    var countinyear = COUNTROWS(
    FILTER(Data, Data[Year] = yr))
    return
    IF(countinyear = 1 || Data[Mo] = 1,1,0)
    • AlexisOlson's avatar
      AlexisOlson
      Super User
      4 years ago

      You seem to be assuming that January is always the first month for each year with multiple rows in the Data table (e.g. this would not work if the first D row in the given example were deleted).

  • v-xiaotang's avatar
    v-xiaotang
    Community Support
    4 years ago

    Hi TonyGu 

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