| Hi All,
| Last time Jaroslav helped me a lot with a little trick but this time I am a little bit jammed.
| I would like to get solved a simple thing again and I cannot find a fast solution to it.
| I have a matrix as
| m = [
| 1 2;
| 1 1;
| 2 3;
| 2 4 ];
| I would like to make a unique of its first column but I would like to have the minimum of second column nearby.
| So it would look like:
| [ 1 1;
| 2 3 ]
| This is something like SELECT first_col, min(second_col) FROM m GROUP BY first_col;
| If I can be sure that the second nargout of unique() always points always to the last index of the same
| selector item then the solution would be something like:
| m = sort( m, 'descend' );
| [u,i,j] = unique( m(:,1) );
| 1) can I be sure about it?
| 2) what if I would want to make aggregate functions such as avg() or var()
I think the help list might be a better place for questions like
this. I'd really like to keep discussions on the maintainers list
focused on development issues.