Forum Discussion

mork's avatar
mork
Icon for Helper V rankHelper V
10 years ago
Solved

Create column with true/false for previous month

Hello,

I have a column with dates in the following format:

 

d/m/yyyy

 

How can I create a calculated column that has as values true for every entry that is on the previous month and false for the rest?

 

I tried the following but it didn't work.

 

 

=IF([Date]=EDATE(DATE(YEAR(NOW());MONTH(NOW()));-1);TRUE();FALSE())

 

I know I must be close but how can I implement the day to my formula?

Need Help
  • Sean's avatar
    Sean
    10 years ago

    mork This should work...

     

    Column =
IF ( YEAR ( Calendar[Date] ) = YEAR ( NOW () )
        && MONTH ( Calendar[Date] ) = MONTH ( NOW () ) - 1,
    TRUE (),
    FALSE ()
)

7 Replies

  • ankitpatira's avatar
    ankitpatira
    Icon for Community Champion rankCommunity Champion
    10 years ago

    mork This should work for you however in your dateColumn you will only need date that is not greater than today. 

     

    NewColumn = IF( DATEDIFF('YOURTABLE'[dateColumn],TODAY(),DAY) <= 30, "Yes", "No")

    • mork's avatar
      mork
      Icon for Helper V rankHelper V
      10 years ago

      ankitpatira

      Unfortunately that's is not what I want. Your formula is about the previous 30 days and not about the previous month. So for example today is the 13th of May. The data that I will see won't be the data of the previous month but will be the data of the last 30 days. Meaning half of April and half of May.

  • Sean's avatar
    Sean
    Icon for Community Champion rankCommunity Champion
    10 years ago

    mork This should work...

     

    Column =
IF ( YEAR ( Calendar[Date] ) = YEAR ( NOW () )
        && MONTH ( Calendar[Date] ) = MONTH ( NOW () ) - 1,
    TRUE (),
    FALSE ()
)
  • Ashish483501's avatar
    Ashish483501
    Frequent Visitor
    10 years ago

    @mork  I'm not sure about this. bt try this it may work

     

    if(month(date)=month(date)-1,"True","False")

  • waltheed's avatar
    waltheed
    Icon for Impactful Individual rankImpactful Individual
    10 years ago

    Hi Mork,

     

    This should do the trick:

     

    =IF(STARTOFMONTH(YourTable[YourDateField]) = date(year(TODAY()); MONTH(today())-1; 1) ;TRUE();FALSE())

     

    HTH,

  • Quis's avatar
    Quis
    New Member
    4 years ago

    The posted soltion does not work over multiple years: 

     

    Use: 

    IsLastMonth = IF (
    (
    ('Dim Date'[Year] = YEAR ( NOW () ) && MONTH ( 'Dim Date'[Date] ) = MONTH ( NOW () ) - 1) ||
    (Month('Dim Date'[Date]) = 12 && Month(now()) == 1 && Year('Dim Date'[Date]) = Year(now()) - 1)), TRUE(), FALSE()
    )
    • chestercas's avatar
      chestercas
      Icon for Helper I rankHelper I
      3 years ago

      Hi,
      Thank you for help !!! this is work !
      But I want to do the same thing, but on the 3 last month (included the last year). I test many things but doesn't work. Can you help me ?
      Thank you ! 🙂