Function.java

/*
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 *  Copyright (C) 2001-2014 by RapidMiner and the contributors
 *
 *  Complete list of developers available at our web site:
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 *       http://rapidminer.com
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 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
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 */
package liblinear;

// origin: tron.h
public interface Function {

   // double fun(double *w);
   // void grad(double *w, double *g);
   // void Hv(double *s, double *Hs);

   double fun( double[] w );

   void grad( double[] w, double[] g );

   void Hv( double[] s, double[] Hs );

   int get_nr_variable();
}