/*

  * principal component analysis (PCA)

  * Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
  *

  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or

  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either

  * version 2.1 of the License, or (at your option) any later version.

  *

  * FFmpeg 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
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public

  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  */
 
 /**

  * @file

  * principal component analysis (PCA)

  */
 

 #ifndef AVUTIL_PCA_H
 #define AVUTIL_PCA_H

 struct PCA *ff_pca_init(int n);
 void ff_pca_free(struct PCA *pca);
 void ff_pca_add(struct PCA *pca, double *v);
 int ff_pca(struct PCA *pca, double *eigenvector, double *eigenvalue);

 #endif /* AVUTIL_PCA_H */