PLearn 0.1
RangeVMatrix.h
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00001 // -*- C++ -*-
00002 
00003 // PLearn (A C++ Machine Learning Library)
00004 // Copyright (C) 1998 Pascal Vincent
00005 // Copyright (C) 1999-2001 Pascal Vincent, Yoshua Bengio, Rejean Ducharme and University of Montreal
00006 // Copyright (C) 2002 Pascal Vincent, Julien Keable, Xavier Saint-Mleux
00007 //
00008 // Redistribution and use in source and binary forms, with or without
00009 // modification, are permitted provided that the following conditions are met:
00010 //
00011 //  1. Redistributions of source code must retain the above copyright
00012 //     notice, this list of conditions and the following disclaimer.
00013 //
00014 //  2. Redistributions in binary form must reproduce the above copyright
00015 //     notice, this list of conditions and the following disclaimer in the
00016 //     documentation and/or other materials provided with the distribution.
00017 //
00018 //  3. The name of the authors may not be used to endorse or promote
00019 //     products derived from this software without specific prior written
00020 //     permission.
00021 //
00022 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
00023 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00024 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
00025 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00026 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
00027 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00028 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00029 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00030 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00031 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00032 //
00033 // This file is part of the PLearn library. For more information on the PLearn
00034 // library, go to the PLearn Web site at www.plearn.org
00035 
00036 
00037 /* *******************************************************
00038  * $Id: RangeVMatrix.h 8239 2007-11-09 15:35:34Z nouiz $
00039  ******************************************************* */
00040 
00041 
00044 #ifndef RangeVMatrix_INC
00045 #define RangeVMatrix_INC
00046 
00047 #include "VMat.h"
00048 
00049 namespace PLearn {
00050 using namespace std;
00051 
00053 
00054 class RangeVMatrix: public VMatrix
00055 {
00056     typedef VMatrix inherited;
00057 
00058 protected:
00059     real start;
00060     real end;
00061     real step;
00062 
00063 public:
00064     // ******************
00065     // *  Constructors  *
00066     // ******************
00067     RangeVMatrix(); 
00068 
00069     RangeVMatrix(real the_start, real the_end, real the_step=1.0);
00070 
00071     PLEARN_DECLARE_OBJECT(RangeVMatrix);
00072     static void declareOptions(OptionList &ol);
00073 
00074     virtual void build();
00075 
00076     virtual real get(int i, int j) const;
00077 private:
00078     void build_();
00079 };
00080 
00081 inline VMat vrange(real start, real end, real step=1.0)
00082 { return new RangeVMatrix(start,end,step); }
00083 
00084 DECLARE_OBJECT_PTR(RangeVMatrix);
00085 
00086 } // end of namespace PLearn
00087 #endif
00088 
00089 
00090 /*
00091   Local Variables:
00092   mode:c++
00093   c-basic-offset:4
00094   c-file-style:"stroustrup"
00095   c-file-offsets:((innamespace . 0)(inline-open . 0))
00096   indent-tabs-mode:nil
00097   fill-column:79
00098   End:
00099 */
00100 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :
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