Package org.integratedmodelling.riskwiz.discretizer

Source Code of org.integratedmodelling.riskwiz.discretizer.DomainDiscretizer

/**
* DomainDiscretizer.java
* ----------------------------------------------------------------------------------
*
* Copyright (C) 2009 www.integratedmodelling.org
* Created: Jul 13, 2009
*
* ----------------------------------------------------------------------------------
* This file is part of riskwiz-cvars.
*
* riskwiz-cvars is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* riskwiz-cvars is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the software; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*
* ----------------------------------------------------------------------------------
*
* @copyright 2009 www.integratedmodelling.org
* @author    Sergey Krivov
* @date      Jul 13, 2009
* @license   http://www.gnu.org/licenses/gpl.txt GNU General Public License v3
* @link      http://www.integratedmodelling.org
**/

package org.integratedmodelling.riskwiz.discretizer;


import java.util.Set;

import org.integratedmodelling.riskwiz.bn.BNNode;
import org.integratedmodelling.riskwiz.bn.BeliefNetwork;
import org.integratedmodelling.riskwiz.domain.ContinuousDomain;
import org.integratedmodelling.riskwiz.domain.DiscreteDomain;
import org.integratedmodelling.riskwiz.domain.IntervalDomain;


/**
* @author Sergey Krivov
*
*/
public class DomainDiscretizer {

    /**
     *
     */
    public DomainDiscretizer() {// TODO Auto-generated constructor stub
    }

    public static BeliefNetwork discretize(BeliefNetwork bn) {

        Set<BNNode> nodes = bn.vertexSet();

        for (BNNode node : nodes) {
            createDiscreteDomain(node);
        }    

        return bn;

    }

    public static void createDiscreteDomain(BNNode node) {
        if (node.getDomain() instanceof ContinuousDomain) {

            IntervalDomain ddom = discretizeDomain(
                    (ContinuousDomain) node.getDomain());

            node.setDiscretizedDomain(ddom);
        } else {
            node.setDiscretizedDomain((DiscreteDomain) node.getDomain());
        }
        node.setWeight(node.getDiscretizedDomain().getOrder());

    }

    public static IntervalDomain discretizeDomain(ContinuousDomain dom) {
        return new IntervalDomain(dom.getName(), dom.getMin(), dom.getMax(),
                dom.getDiscretizationOrder());
    }

}
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