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/*
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 * principal component analysis (PCA)
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 * Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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/**
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 * @file libavutil/pca.h
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 * principal component analysis (PCA)
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 */
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#ifndef AVUTIL_PCA_H
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#define AVUTIL_PCA_H
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struct PCA *ff_pca_init(int n);
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void ff_pca_free(struct PCA *pca);
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void ff_pca_add(struct PCA *pca, double *v);
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int ff_pca(struct PCA *pca, double *eigenvector, double *eigenvalue);
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#endif /* AVUTIL_PCA_H */