YTD as dynamic value using DAX

[ramk]

HI,

I am looking to make the YTD measure to be dynamic based on a input parameter.
This input parameter then will be used a slicer in power pivot.

For ex:
To calculate YTD, we use :

IsYTD = IF( YEAR(Calendar[DateSK]) = YEAR(TODAY()) && Calendar[DateSK]<TODAY(),1,0)

But above TODAY() is hardcoded and I am trying to make it dynamic so that YTD is calculateed based on users preference
Looking for more a function like feature in M.

something like :

VAR pickdate = date(2018,2,1) -- pickdate to be a slicer
IsYTD = IF( YEAR(Calendar[DateSK]) = YEAR(pickdate) && Calendar[DateSK]<pickdate,1,0)

I tried to create a new datetable and reference it in above query by joining the relationship with Calendar table but it doesnt seem to calculate YTD dynamically.

[Salonic · Accepted solution]

Hello,

By using a WhatIf parameter, you may let the users choose their parameters dynamically.

I created a simple table :

I then created a WhatIf parameter :

LastDays = GENERATESERIES(0; 50; 1)

Inside the data table, I added 3 new measures :

Date Min = DATE(YEAR(TODAY()-LastDays[Last DAys Val]);1;1)

Date Max = TODAY()-LastDays[Last DAys Val]

Sales YTD = 
 SUMX(
 FILTER(Data;AND(Data[Date]<[Date Max];Data[Date]>= [Date Min]));
 Data[Units]) 

When users change the value of LastDays on a slicer, it will dynamically change the scope :