source: src/main/java/agents/anac/y2015/agentBuyogV2/flanagan/math/LogNormalThreeParFunct.java

/*******************************************************************************************
 *   AUTHOR: Dr Michael Thomas Flanagan
 *   DATE:   22 April 2004
 *   UPDATE: 21 November 2006, 31 December 2006, 14 April 2007, 19 October 2007, 16-29 March 2008,
 *           3 July 2008, 19 September 2008, 28 September 2008, 13 and 18 October 2009
 *
 *   DOCUMENTATION:
 *   See Michael Thomas Flanagan's Java library on-line web page:
 *   http://www.ee.ucl.ac.uk/~mflanaga/java/PsRandom.html
 *   http://www.ee.ucl.ac.uk/~mflanaga/java/
 *
 * Copyright (c) 2004 - 2009  Michael Thomas Flanagan
 *
 * PERMISSION TO COPY:
 *
 * Permission to use, copy and modify this software and its documentation for NON-COMMERCIAL purposes is granted, without fee,
 * provided that an acknowledgement to the author, Dr Michael Thomas Flanagan at www.ee.ucl.ac.uk/~mflanaga, appears in all copies
 * and associated documentation or publications.
 *
 * Redistributions of the source code of this source code, or parts of the source codes, must retain the above copyright notice, this list of conditions
 * and the following disclaimer and requires written permission from the Michael Thomas Flanagan:
 *
 * Redistribution in binary form of all or parts of this class 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 and requires written permission from the Michael Thomas Flanagan:
 *
 * Dr Michael Thomas Flanagan makes no representations about the suitability or fitness of the software for any or for a particular purpose.
 * Dr Michael Thomas Flanagan shall not be liable for any damages suffered as a result of using, modifying or distributing this software
 * or its derivatives.
 *
 ***************************************************************************************/
package agents.anac.y2015.agentBuyogV2.flanagan.math;

import agents.anac.y2015.agentBuyogV2.flanagan.analysis.Stat;
import agents.anac.y2015.agentBuyogV2.flanagan.roots.RealRootFunction;

// Class to evaluate the three parameter log-normal distribution function
public class LogNormalThreeParFunct implements RealRootFunction{
  public double cfd = 0.0D;
  public double alpha = 0.0D;
  public double beta = 0.0D;
  public double gamma = 0.0D;

  public double function(double x) {

      double y = cfd - Stat.logNormalThreeParCDF(alpha, beta, gamma, x);

      return y;
  }
}