text: /*
   * Copyright (C) 2006-2013  Music Technology Group - Universitat Pompeu Fabra
   *
   * This file is part of Essentia
   *
   * Essentia is free software: you can redistribute it and/or modify it under
   * the terms of the GNU Affero General Public License as published by the Free
   * Software Foundation (FSF), either version 3 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 Affero GNU General Public License
   * version 3 along with this program.  If not, see http://www.gnu.org/licenses/
   */
  
  #ifndef ESSENTIA_PCA_H
  #define ESSENTIA_PCA_H
  
  #include "algorithm.h"
  #include "pool.h"
  
  namespace essentia {
  namespace standard {
  
  class PCA : public Algorithm {
  
   protected:
    Input<Pool> _poolIn;
    Output<Pool> _poolOut;
  
   public:
    PCA() {
      declareInput(_poolIn, "poolIn", "the pool where to get the spectral contrast feature vectors");
      declareOutput(_poolOut, "poolOut", "the pool where to store the transformed feature vectors");
    }
  
    ~PCA(){}
  
    void declareParameters() {
      declareParameter("namespaceIn", "will look for this namespace in poolIn", "", "spectral contrast");
      declareParameter("namespaceOut", "will save to this namespace in poolOut", "", "spectral contrast pca");
      declareParameter("dimensions", "number of dimension to reduce the input to", "[0, inf)", 0);
    }
  
    void configure(){}
    void compute();
  
    static const char* name;
    static const char* description;
  
  };
  
  } //namespace standard
  } //namespace essentia
  
  
  #endif // ESSENTIA_PCA_H
  