How to find the highest N values in each group in Google Sheets

Question

I want to use a formula to find the highest N values in each group in a Google Spread Sheets.

I tried this formula from infoinspired.com (credit to Prashanth):

=ArrayFormula(QUERY({SORT(A2:B;1;true;2;false);IFERROR(row(A2:A)-match(query(SORT(A2:B;1;true;2;false);"Select Col1");query(SORT(A2:B;1;true;2;false);"Select Col1");0))};"Select Col1,Col2 where Col3<3"))

But all it return is an Array_Literal error:

This is what I expect:

What is wrong with it?

Answer 1

alternative formula:

=QUERY(SORT({{A2:B}\MAP(A2:A;B2:B;lambda(ax;bx;IFERROR(Rank(bx;Filter(B$2:$B;A$2:$A=ax);0);IFERROR(1/0))))};1;0;3;1);"Select Col1, Col2 Where Col3<3")

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Answer 2

You have to put a comma, not a semi colon before IFERROR. It's creating two columns, one twice larger than the other instead of three columns ;)

=ArrayFormula(QUERY({SORT(A2:B,1,true,2,false),IFERROR(row(A2:A)-match(query(SORT(A2:B,1,true,2,false),"Select Col1"),query(SORT(A2:B,1,true,2,false),"Select Col1"),0))},"Select Col1,Col2 where Col3<3"))