/*
 *  $Id: LogNormalSigma.h  $
 *
 *  Created on: Oct 6, 2009
 *      Author: ehaasdi
 *
 * Copyright (c) 2009, VU University Amsterdam
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the <organization> nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY <copyright holder> ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#ifndef LOGNORMALSIGMA_H_
#define LOGNORMALSIGMA_H_

double 	TauLcl;
 	//Local factor for mutation of std deviations.
double 	TauGlb;
 	//Global factor for mutation of std deviations.

const double minSigma = 1.0e-40;

virtual bool operator()( eoEsStdev<FitT>& _eo )
         {
             double global = TauGlb * rng.normal();
             for (unsigned i = 0; i < _eo.size(); i++)
             {
                 double sigma = _eo.sigmas[i];
                 sigma *= exp( global + TauLcl * rng.normal() );
                 sigma = std::max(min_sigma, sigma);

                 _eo.sigmas[i] = sigma;
                 _eo[i] += stdev * rng.normal();
             }
             bounds.foldsInBounds(_eo);
             return true;
         }




#endif /* LOGNORMALSIGMA_H_ */
