38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
/*
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* Principal component analysis
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* Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
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*
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* This library 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 of the License, or (at your option) any later version.
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*
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* This library 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 this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/**
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* @file pca.h
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* Principal component analysis
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*/
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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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typedef struct PCA{
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int count;
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int n;
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double *covariance;
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double *mean;
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}PCA;
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