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Ley022
Frequent Visitor

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:

 

Imagen1.jpg

 

Thanks in advance

1 REPLY 1
amitchandak
Super User IV
Super User IV

@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())



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