— Mapping Function: spmin (x, y, dim)
— Mapping Function: [w, iw] = spmin (x)

For a vector argument, return the minimum value. For a matrix argument, return the minimum value from each column, as a row vector, or over the dimension dim if defined. For two matrices (or a matrix and scalar), return the pair-wise minimum. Thus,

          min (min (x))
     

returns the smallest element of x, and

          min (2:5, pi)
              =>  2.0000  3.0000  3.1416  3.1416
     

compares each element of the range 2:5 with pi, and returns a row vector of the minimum values.

For complex arguments, the magnitude of the elements are used for comparison.

If called with one input and two output arguments, min also returns the first index of the minimum value(s). Thus,

          [x, ix] = min ([1, 3, 0, 2, 5])
              =>  x = 0
                  ix = 3