Calculated column filter - for grouping rows

[ellac]

Hi!

I want to create a calculated column in tabular editor which will be used as a filter in reports. You could say, what I want to achieve, is a type of grouping of rows. I want to create "Order type head" in the example below. 

The order head consists of all the order rows. If all order rows have the same "Order type row", we want "Order type head" to also have that value.

BUT, if we have an order head that consists of order rows with "Order type row" that BOTH are A and B, we want "Order type head" to be mixed. 

Order head	Order row	Order type row	Order type head
1	1	A	A
1	2	A	A
2	1	B	Mixed
2	2	A	Mixed
3	1	B	B
3	2	B	B

In words I want to be able to filter out order heads that only consists of one "Order type row", otherwise "mixed" is returned. 

Any tips on how to achieve this in a calculated column?

/Ella 

[tamerj1 · Accepted solution]

Hi @ellac 

please try

Order Type Head =
IF (
    COUNTROWS (
        CALCULATETABLE (
            VALUES ( 'Table'[Order type row] ),
            ALLEXCEPT ( 'Table', 'Table'[Order head] )
        )
    ) = 1,
    'Table'[Order type row],
    "Mixed"
)

[ellac]

Hi @tamerj1, thanks for your answer! It's working like a charm 😄