ADJUST /METHOD
Keywords: sic

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ADJUST /METHOD

          ANNEAL  Simulated annealing technique. This may require a  very  large
            number of function evaluation.
          POWELL  Gradient  using  the  Powell  method with the Davidon-Fletcher
            variable metric.
          SIMPLEX Classical Simplex amoeba search
          ROBUST  A combination of Simplex +  Slatec,  to  be  used  with  large
            enough initial steps.
          SLATEC  Modified  Levenberg  Marquardt  method with adaptive steps, as
            implemented in the Slatec (LINPACK) library

        All methods require a proper choice of initial values and steps. The AN-
        NEAL method is much more robust against poor guesses, but may require 10
        to 100 times more function evaluations than any other.  It is also  dif-
        ficult to control.