I'm dealing with a matrix like :
"x" "y" "z"
[1,] 2 4 1
[2,] 6 1 2
...
[n,] 7 3 1
For each row I would like to know the header of the
column which corresponds to the minimum value. In the
case of my matrix, I would like to obtain the
following vector :
z y ... z
Any idea ?