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darlingling520
New Member

can't calculate DATEDIFF using Max function

Hi all,

 

I'm pretty new to power bi so I would like some help on this 

 

I am trying to calculate the month difference between the max date and the selected date

I tried 2 different methods:

Method 1 using today() and it worked well 

datediff = DATEDIFF(SELECTEDVALUE(DATA[date].[date]),today(),MONTH)
 
however when I tried to use the max function replacing the today() function- my result returned to 0 
datediff2 = DATEDIFF(SELECTEDVALUE(DATA[date].[date]),max(DATA[date].[Date]),MONTH)
 
does anyone know why is my max() not returning the max date of the table?
 
thanks in advanced! 
2 ACCEPTED SOLUTIONS
Samarth_18
Super User
Super User

Hi @darlingling520 ,

You could try this:-

datediff2 = 
var max_date = calculate(max(DATA[date]),ALL(DATA[date]))
return DATEDIFF(SELECTEDVALUE(DATA[date]),max_date,MONTH)

BR,

Samarth


If this post helps, please consider accepting it as the solution to help the other members find it more quickly.
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View solution in original post

darlingling520
New Member

okay I already figured out myself - in order to use the max function 

i need to use maxdate= calculate(max(data[date]),all(data)); so the max date will be fixed and therefore i can use it to calculate the datediff 

View solution in original post

3 REPLIES 3
darlingling520
New Member

okay I already figured out myself - in order to use the max function 

i need to use maxdate= calculate(max(data[date]),all(data)); so the max date will be fixed and therefore i can use it to calculate the datediff 

Samarth_18
Super User
Super User

Hi @darlingling520 ,

You could try this:-

datediff2 = 
var max_date = calculate(max(DATA[date]),ALL(DATA[date]))
return DATEDIFF(SELECTEDVALUE(DATA[date]),max_date,MONTH)

BR,

Samarth


If this post helps, please consider accepting it as the solution to help the other members find it more quickly.
Appreciate your Kudos!!
Connect on Linkedin


thanks so much!!

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