Returning a value if cells are duplicate based on condition

[OmarMonzer]

Hello PBI community,

I need your help to create a column that returns only one value based on MAX Quantity, below is an example.
current data:

Condition.   Quantities.

Absd1011.          1

Absd1213.          1

Absd1314.          1

Absd1011.          1

Absd1011.         -1

Desired data:

Condition.   Quantities.  Duplication check. 

Absd1011.          1                 True. 

Absd1213.          1                 True. 

Absd1314.          1                 True. 

Absd1011.          1                 Blank/False. 

Absd1011.         -1                Blank/False. 

So basically i just need to return only one value for distinct "Condition" with MAX Quantity "which is usually 1 or -1".
And in case two rows met the criteria to only take one row randomly.

I was able to create the code for first part but I'm stuck in the second part which is most important for my case where i have to pick only one row randomly.

Thanks in advance:)

[Anonymous]

Hi @OmarMonzer ,

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[ryan_mayu · Accepted solution]

what about use the group by function in the PQ?