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File org.dgpf.gp.regression.base.AggregationBase.java

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/*
 * Copyright (c) 2006 Thomas Weise
 * 
 * E-Mail           : tweise@gmx.de
 * Creation Date    : 2006-07-25 10:21:01
 * Original Filename: org.dgpf.gp.regression.RegressionBase.java
 * Version          : 1.0.0
 * Last modification: 2006-07-25
 *                by: Thomas Weise
 * 
 * License          : GNU LESSER GENERAL PUBLIC LICENSE
 *                    Version 2.1, February 1999
 *                    You should have received a copy of this license along
 *                    with this library; if not, write to the Free Software
 *                    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *                    MA 02111-1307, USA or download the license under
 *                    http://www.gnu.org/copyleft/lesser.html.
 *                    
 * Warranty         : This software is provided "as is" without any
 *                    warranty; without even the implied warranty of
 *                    merchantability or fitness for a particular purpose.
 *                    See the Gnu Lesser General Public License for more
 *                    details.
 */

 
package org.dgpf.gp.regression.base;

import org.dgpf.gp.Construct;

/**
 * The internal base class for calculations and expressions.
 *
 * @author Thomas Weise
 */

abstract class AggregationBase extends Construct
  {
/**
 * Returns the costs that will arise when executing this expression.
 * This is defined as the costs of exactly this expression plus the costs
 * of all sub-expressions.
 * @return The costs of executing this expression.
 */

  public  abstract  double  get_costs  ()  ;
  
/**
 * Compute the expression value.
 * @param p_calculator  The calculator this expression should be evaluated
 *                      on.
 * @return  The computed expression value.
 */

  public  abstract  double  compute (final  Calculator    p_calculator);
  
/**
 * Check how the specified variable is used.
 * @param p_index The index of the variable.
 * @return  An or-combination of <code>1</code> if the variable is read and
 *          <code>2</code> if it is written to.
 */

  public  abstract  int  get_variable_usage       (final int p_index);
  
/**
 * Returns the count of variable used.
 * @return The count of variable used.
 */

  public  abstract  int     get_variable_count  ()  ;
/**
 * Obtain the depth of the construct.
 * @return The depth of the construct.
 */

  public  abstract  int     get_depth           ();
  }

File Information:

file name:AggregationBase.java
package:org.dgpf.gp.regression.base
qualified name:org.dgpf.gp.regression.base.AggregationBase.java
file type:Java Source File
download location:download http://dgpf.sourceforge.net/source/org/dgpf/gp/regression/base/AggregationBase.java
size:2.444 KB (2503 B)
uploaded: 2015-07-22 04:10:56 GMT+0000
last update: 2006-08-15 04:56:03 GMT+0000
last access: 2017-11-21 15:41:16 GMT+0000

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