Filtering Top N Value on Two Fields

[Anonymous]

Hi, 

I was wondering if someone could help with some Top N filtering - I have sales data by State and City - I wish to filter this data (presumably using the Top N option) to filter the top-sales city in each state. 

E.g. I currently have a table with a few hundred rows, I wish to compress this to contain each State once, with its top-selling city and the sales figure for that city. 

Thanks in advance. 

[amitchandak · Accepted solution]

@Anonymous , Create a Rank and use visual level filter for  Rank<=10

Rankx(filter(allselected(Table[State], Table[City]), [State] = max([State]) ), [sales],,desc,dense)

Also check

https://www.sqlbi.com/articles/filtering-the-top-3-products-for-each-category-in-power-bi/