ConcatColumnsVMatrix.h

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// -*- C++ -*-

// PLearn (A C++ Machine Learning Library)
// Copyright (C) 1998 Pascal Vincent
// Copyright (C) 1999-2001 Pascal Vincent, Yoshua Bengio, Rejean Ducharme and University of Montreal
// Copyright (C) 2002 Pascal Vincent, Julien Keable, Xavier Saint-Mleux
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// 
//  1. Redistributions of source code must retain the above copyright
//     notice, this list of conditions and the following disclaimer.
// 
//  2. Redistributions in binary form must reproduce the above copyright
//     notice, this list of conditions and the following disclaimer in the
//     documentation and/or other materials provided with the distribution.
// 
//  3. The name of the authors may not be used to endorse or promote
//     products derived from this software without specific prior written
//     permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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// This file is part of the PLearn library. For more information on the PLearn
// library, go to the PLearn Web site at www.plearn.org


/* *******************************************************      
   * $Id: ConcatColumnsVMatrix.h,v 1.9 2004/07/07 17:30:48 tihocan Exp $
   ******************************************************* */


#ifndef ConcatColumnsVMatrix_INC
#define ConcatColumnsVMatrix_INC

#include "RowBufferedVMatrix.h"
#include "VMat.h"

namespace PLearn {
using namespace std;
 

class ConcatColumnsVMatrix: public RowBufferedVMatrix
{
  typedef RowBufferedVMatrix inherited;

 protected:
  Array<VMat> array;
  
 public:

  bool no_duplicate_fieldnames;

  ConcatColumnsVMatrix(Array<VMat> the_array=Array<VMat>());
  ConcatColumnsVMatrix(VMat d1, VMat d2);

 protected:

  static void declareOptions(OptionList &ol);
  virtual void getNewRow(int i, const Vec& samplevec) const; 

 public:

  virtual real getStringVal(int col, const string & str) const;
  const map<string,real>& getStringMapping(int col) const;
  virtual string getValString(int col, real val) const;
  virtual string getString(int row,int col) const;
  virtual void reset_dimensions() { PLERROR("ConcatColumnsVMatrix::reset_dimensions() not implemented"); }
  virtual real dot(int i1, int i2, int inputsize) const;
  virtual real dot(int i, const Vec& v) const;

  PLEARN_DECLARE_OBJECT(ConcatColumnsVMatrix);
  virtual void build();
private:
  void build_();
};

DECLARE_OBJECT_PTR(ConcatColumnsVMatrix);

inline VMat hconcat(VMat d1, VMat d2)
{ return new ConcatColumnsVMatrix(d1,d2); }

inline VMat hconcat(Array<VMat> ds)
{ return new ConcatColumnsVMatrix(ds); }


} // end of namespcae PLearn
#endif

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