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// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) 2009 - 2011 - DIGITEO - Michael Baudin
// Copyright (C) 2010 - DIGITEO - Allan CORNET
// Copyright (C) 2012 - Scilab Enterprises - Adeline CARNIS
//
// 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_V2.1-en.txt
function demo_outputfunction()
mprintf(_("Running optimization ...\n"));
function y = banana (x)
y = 100*(x(2)-x(1)^2)^2 + (1-x(1))^2;
endfunction
function stop = outfun ( x , optimValues , state )
fc = optimValues.funccount;
fv = optimValues.fval;
it = optimValues.iteration;
pr = optimValues.procedure;
mprintf ( "%d %e %d -%s-\n" , fc , fv , it , pr )
stop = %f
endfunction
opt = optimset ( "OutputFcn" , outfun );
[x,fval,exitflag,output ] = fminsearch ( banana , [-1.2 1] , opt );
//
// Display results
//
mprintf("x = %s\n",strcat(string(x)," "));
mprintf("fval = %e\n",fval);
mprintf("output.message:\n");
for i =1:3
mprintf(output.message(i));
mprintf("\n");
end
mprintf("output.algorithm:%s\n",output.algorithm);
mprintf("output.funcCount:%d\n",output.funcCount);
mprintf("output.iterations:%d\n",output.iterations);
//
// Load this script into the editor
//
m = messagebox(_("View Code?"), "Question", "question", [_("Yes") _("No")], "modal")
if(m == 1)
filename = "fminsearch_outputfunction.sce";
dname = get_absolute_file_path(filename);
editor ( dname + filename, "readonly" );
end
endfunction
demo_outputfunction();
clear demo_outputfunction;
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