Remove rows from a matrix by considering repeated elements of the first column.

Good afternoon. I am writing to request your help again. It turns out that I have a matrix called "TT_XY" that contains some heights in the first column, while in the other second column there are elements that have associated heights. As you can deduce, for each node there is corresponding height (for that reason there are several nodes that have the same height). What I need is to eliminate the repeated nodes along with their corresponding height (column 1) and leave only a single node of each type. Below I show how my matrix is ​​currently configured. Thank you.

[Adam Danz]

How about you make this a tad easier for volunteers and provide a copy-paste format of TT_XY and also provide the expected output.

Answer 1

[Fangjun Jiang]

unique(A,'rows')

[Pedro Guevara]

Perfect. I did not think it was so easy. XD