Create measure excluding current selection

[Banistas]

Hi,

I want to create a measure that will make a calculation excluding the current selection from it.

Easier to explain with a simple example, so here I go. 

Let's assume I have the following data table:

Persons	Number of Pets
Lucy	6
Gabi	2
Martin	3

And now, let say I want to create a measure named Number of Pets Excluding You that will sum the Number of Pets for all the Persons, excluding the one that is "currently" selected. So, I want o end up with a Simple Table that displays as follows: 

Persons	Number of Pets Excluding You
Lucy	5
Gabi	9
Martin	8

Where the Number of Pets Excluding You was 5 for Lucy (Gabi has 2 + Martin has 3), 9 for Gabi (Lucy has 6 + Martin has 3), and 8 for Martin (Lucy has 6 + Gabi has 2).  

How can this be achieved?

Thanks. 

[amitchandak]

@Banistas , Create a measure like this and try

calculate(sum(Table[Number of Pets]), all(Table))- sum(Table[Number of Pets])

Please provide your feedback comments and advice for new videos
Tutorial Series Dax Vs SQL Direct Query PBI Tips
Appreciate your Kudos.

[Anonymous · Accepted solution]

Hello @Banistas

Something along these lines using the EXCEPT function should work, assuming you have a [Number of Pets] measure:

Number of Pets Excluding You =
CALCULATE (
    [Number of Pets],
    EXCEPT ( ALL ( YourTable[Persons] ), VALUES ( YourTable[Persons] ) )
)

Using ALL ( YourTable[Persons] ) ensures that you always get the total of all people other than filtered people. You can consider ALLSELECTED if there is an external filter on the people you want to use instead of everyone in the dataset.

Best regards

Owen

[Banistas]

Thanks @OwenAugerFon. This does exactly what I needed, and can be applied for cases where there are calculations other than SUM which is brilliant.