# Copyright (C) 2008-2009 - INRIA - Michael Baudin
# Copyright (C) 2009-2010 - DIGITEO - Michael Baudin
# Copyright (C) 2010-$year$ - Sebastien Bihorel
#
# This file must be used under the terms of the CeCILL.
# This source file is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at
# http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
#
# This source code is a R port of the neldermead component
# originally written by Michael Baudin for Scilab :
# "Nelder-Mead User's Manual", 2010, Consortium Scilab - Digiteo,
# Michael Baudin, http://wiki.scilab.org/The_Nelder-Mead_Component
neldermead.search <- function(this=NULL){
withderivatives <- optimbase.get(this=this$optbase,key='withderivatives')
if (withderivatives)
stop('neldermead.search: The -withderivatives option is true but all algorithms in neldermead are derivative-free.',
call.=FALSE)
if (!this$startupflag){
this <- neldermead.startup(this=this)
this$startupflag <- TRUE
}
neldermead.outputcmd(this=this,state='init',simplex=this$simplex0,step='init')
if (this$restartflag){
this <- neldermead.autorestart(this)
} else {
this <- neldermead.algo(this=this)
}
neldermead.outputcmd(this=this,state='done',simplex=this$simplexopt,step='done')
return(this)
}
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