fminsearch.outputfun function

fminbnd Output Function Call

This function calls the output function and make it match neldermead requirements. It is used in the fminbnd function as the outputcommand element of the neldermead object (see ?neldermead and ?neldermead.set).

fminbnd.outputfun(state = NULL, data = NULL, fmsdata = NULL)

Arguments

• state: The current state of the algorithm either 'init', 'iter' or 'done'.

• data: The data at the current state. This is an object of class 'neldermead.data', i.e. a list with the following elements:

  • x: The current parameter estimates.
  • fval: The current value of the cost function.
  • simplex: The current simplex object.
  • iteration: The number of iterations performed.
  • funccount: The number of function evaluations.
  • step: The type of step in the previous iteration.

• fmsdata: This is an object of class 'optimbase.functionargs' which contains specific data of the fminbnd algorithm:

  • Display: what to display
  • OutputFcn: the array of output functions
  • PlotFcns: the array of plot functions

Returns

This function does not return any data, but execute the output function(s).

Author(s)

Author of Scilab neldermead module: Michael Baudin (INRIA - Digiteo)

Author of R adaptation: Sebastien Bihorel (sb.pmlab@gmail.com )

See Also

fminbnd, neldermead, neldermead.set,