include/realmat.h

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/********************************************************************************
 *  Neural Network Framework.                                                   *
 *  Copyright (C) 2005-2008 Gianluca Massera <emmegian@yahoo.it>                *
 *                                                                              *
 *  This program 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 2 of the License, or           *
 *  (at your option) any later version.                                         *
 *                                                                              *
 *  This program 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 this program; if not, write to the Free Software                 *
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA  *
 ********************************************************************************/

// --- You can't include it directly
#ifndef TYPES_INCLUDES
#error "You can't include realmat.h directly; Instead, You have to include types.h"
// --- follow define avoid to get a lot of understandable error !
#define REALMAT_H
#endif

#ifndef REALMAT_H
#define REALMAT_H

namespace nnfw {

class NNFW_API RealMat : public MatrixData<Real, RealVec> {
public:

    RealMat( u_int rows, u_int cols );

    RealMat( RealVec& src, u_int rstart, u_int rend, u_int rows, u_int cols );

    ~RealMat();



    RealMat& operator-() {
        -rawdata();
        return (*this);
    };

    RealMat& transpose() {
        Real tmp;
        RealMat& self = *this;
        for( u_int i=0; i<rows(); i++ ) {
            for( u_int j=i+1; j<cols(); j++ ) {
                tmp = self[i][j];
                self[i][j] = self[j][i];
                self[j][i] = tmp;
            }
        }
        return (*this);
    };

    

    RealMat& operator+=(const RealMat& r ) {
#ifdef NNFW_DEBUG
        if( rows() != r.rows() || cols() != r.cols() ) {
            nError() << "Different dimension";
            return (*this);
        }
#endif
        rawdata() += r.rawdata();
        return (*this);
    };
    
    RealMat& operator+=(const Real& r ) {
        rawdata() += r;
        return (*this);
    };
    
    RealMat& operator-=(const RealMat& r ) {
#ifdef NNFW_DEBUG
        if( rows() != r.rows() || cols() != r.cols() ) {
            nError() << "Different dimension";
            return (*this);
        }
#endif
        rawdata() -= r.rawdata();
        return (*this);
    };
    
    RealMat& operator-=(const Real& r ) {
        rawdata() -= r;
        return (*this);
    };
    
    RealMat& operator*=(const RealMat& r ) {
#ifdef NNFW_DEBUG
        if( rows() != r.rows() || cols() != r.cols() ) {
            nError() << "Different dimension";
            return (*this);
        }
#endif
        rawdata() *= r.rawdata();
        return (*this);
    };
    
    RealMat& operator*=(const Real& r ) {
        rawdata() *= r;
        return (*this);
    };
    
    RealMat& operator/=(const RealMat& r ) {
#ifdef NNFW_DEBUG
        if( rows() != r.rows() || cols() != r.cols() ) {
            nError() << "Different dimension";
            return (*this);
        }
#endif
        rawdata() /= r.rawdata();
        return (*this);
    };
    
    RealMat& operator/=(const Real& r ) {
        rawdata() /= r;
        return (*this);
    };

    

    static RealVec& mul( RealVec& y, const RealVec& x, const RealMat& m );

    static RealVec& mul( RealVec& y, const RealMat& m, const RealVec& x );

    RealMat& deltarule( Real rate, const RealVec& x, const RealVec& y );



    RealMat& cover( const MatrixData<bool>& mask ) {
        RealMat& self = *this;
        for( u_int r=0; r<rows(); r++ ) {
            for( u_int c=0; c<cols(); c++ ) {
                if ( !mask[r][c] ) {
                    self[r][c] = 0.0;
                }
            }
        }
        return (*this);
    };



    RealMat& exp();

    RealMat& scale( const Real v ) {
        for( u_int i=0; i<size(); i++ ) {
            rawdata()[i] *= v;
        }
        return (*this);
    };

    RealMat& inv();

    Real norm() {
        return rawdata().norm();
    };
    void normalize() {
        rawdata().normalize();
    };


    //--- for accessing from C interface implementation
    friend Real* getRawData( RealMat& );

};

}

#endif

Copyright © 2005-2008 G. Massera

Contact: emmegian (at) yahoo (dot) it

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