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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
Community Champion
Community Champion

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

Best Regards,
Samarth

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

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

Best Regards,
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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