KernelPCA.h

#ifndef _theplu_yat_utility_kernel_pca_
#define _theplu_yat_utility_kernel_pca_

// $Id: KernelPCA.h 4207 2022-08-26 04:36:28Z peter $

/*
  Copyright (C) 2010, 2017, 2022 Peter Johansson

  This file is part of the yat library, http://dev.thep.lu.se/yat

  The yat library 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.

  The yat library 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 yat. If not, see <http://www.gnu.org/licenses/>.
*/

namespace theplu {
namespace yat {
namespace utility {

  class Matrix;
  class MatrixBase;
  class Vector;

  class KernelPCA
  {
  public:
    explicit KernelPCA(const MatrixBase& kernel);

    virtual ~KernelPCA(void);

    const Vector& eigenvalues(void) const;

    const Matrix& projection(void) const;

  private:
    class Impl;
    Impl* impl_;
};

}}} // of namespace utility, yat, and theplu

#endif