Forum Discussion

Ley022's avatar
Ley022
Frequent Visitor
5 years ago

datediff for first dates

Hi,

I want to calculate the time difference (datediff) in days between two dates: Timestamp and Date (blue). But I want to calculate this difference for the first date of date, for every IDs. If it is not the first date, it should return an empty value.

An example:

 

 

Thanks in advance

Help

1 Reply

  • amitchandak's avatar
    amitchandak
    Super User
    5 years ago

    Ley022 , Logic is not very clear.

     

    You can try like


    new column =
    var _min = minx(filter(table,[Id] =earlier([ID])),[Date])
    return
    if([Date]=_min , datediff([date], [timestamp], day), blank())