I would like to get e.g. min or max value from column2 for same value in column1. In mine example I want max value from column2 for value A (column1) and that is 18, and for B is 27.
I've tried with array function but I cannot manage it to work properly.
Tnx for any tip or solution.
Example:
Column1 Column2 Max_value
A 1 18
A 5 18
A 18 18
A 3 18
A 4 18
B 2 27
B 5 27
B 18 27
B 27 27
B 5 27
B 3 27
Sorry for poor example, but I couldn't post picture, my rank is not high enough :)