Lowest average of student and return student name

One way... again using an array formula:

=MID(INDEX(B:B,SUMPRODUCT((AVERAGEIF(A2:A9,A14:A16,C2:C9)=MIN(AVERAGEIF(A2:A9,A14:A16,C2:C9)))*ROW(B14:B16))),2,1)

Array Formulae are a little different from ordinary formulae in that they MUST be confirmed in the FIRST CELL ONLY by pressing CTRL+SHIFT+ENTER to activate the array, not just ENTER. After that, the array can be dragged down as normal, to cover the desired range.

You will know the array is active when you see curly brackets { } - or "curly braces" for those of you in the USA, or "flower brackets" for those of you in India - appear around the outside of your formula. If you do not use CTRL+SHIFT+ENTER you will (almost always) get an error message or an incorrect answer. Press F2 on that cell and try again.

Don't type the curly brackets yourself - it won't work...

Hi, Glenn thank you for the help really appreciate it. By any chance could you explain the logic of the formula to me. I am a bit confused why you used B:B.

This bit:
(AVERAGEIF(A2:A9,A14:A16,C2:C9)=MIN(AVERAGEIF(A2:A9,A14:A16,C2:C9))
resolves to FALSE,TRUE,FALSE, being the data raw where the average equals the minumum of the average. I multiplied that by the row number:
*ROW(B14:B16)
which returns 0,15,0 and which sumproduct returns the sum of those (i.e. 15). That is the row number corresponding to the lowest average. INDEX (B:B returns the value. i could have used B1:B16, but using B:B causes no performance issues and does not require to be adjusted if/when the data gets longer.

MID(result,2,1) returns the 2nd letter of the name.


You're welcome.

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If that takes care of your original question, please select "Thread Tools" from the menu link above and mark this thread as SOLVED.

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Here are 3 working options for you to choose from. You need to remember that INDEX works with SHEET row numbers. So if you use anthing OTHER than a form that uses the range starting from B1 (such as B1:Bxxx, or B:B) then you need to add in a couple of terms to correct.

No problem. You're welcome. It's a personal preference thing. Some people like to use the row(range)-row(data start)+1 thing to keep it compatible with earlier (Excel 2003 and before) versions of Excel, when whole column references were not allowed.

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