PLearn 0.1
RepeatSplitter.h
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00001 // -*- C++ -*-
00002 
00003 // RepeatSplitter.h
00004 //
00005 // Copyright (C) 2003 Olivier Delalleau
00006 //
00007 // Redistribution and use in source and binary forms, with or without
00008 // modification, are permitted provided that the following conditions are met:
00009 //
00010 //  1. Redistributions of source code must retain the above copyright
00011 //     notice, this list of conditions and the following disclaimer.
00012 //
00013 //  2. Redistributions in binary form must reproduce the above copyright
00014 //     notice, this list of conditions and the following disclaimer in the
00015 //     documentation and/or other materials provided with the distribution.
00016 //
00017 //  3. The name of the authors may not be used to endorse or promote
00018 //     products derived from this software without specific prior written
00019 //     permission.
00020 //
00021 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
00022 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00023 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
00024 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00025 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
00026 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00027 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00028 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00029 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00030 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00031 //
00032 // This file is part of the PLearn library. For more information on the PLearn
00033 // library, go to the PLearn Web site at www.plearn.org
00034 
00035 /* *******************************************************
00036  * $Id: RepeatSplitter.h 7733 2007-07-10 01:19:04Z lamblin $
00037  ******************************************************* */
00038 
00041 #ifndef RepeatSplitter_INC
00042 #define RepeatSplitter_INC
00043 
00044 #include "Splitter.h"
00045 
00046 namespace PLearn {
00047 using namespace std;
00048 
00049 class RepeatSplitter: public Splitter
00050 {
00051     typedef Splitter inherited;
00052 
00053 protected:
00054 
00055     // *********************
00056     // * protected options *
00057     // *********************
00058 
00061     TMat<int> indices;
00062 
00064     int last_n;
00065 
00066 public:
00067 
00068     // ************************
00069     // * public build options *
00070     // ************************
00071 
00072     bool do_not_shuffle_first;
00073     real force_proportion;
00074     int n;
00075     int32_t seed;
00076     int shuffle;
00077     PP<Splitter> to_repeat;
00078 
00079     // ****************
00080     // * Constructors *
00081     // ****************
00082 
00083     RepeatSplitter();
00084 
00085 
00086     // ******************
00087     // * Object methods *
00088     // ******************
00089 
00091     virtual void setDataSet(VMat the_dataset);
00092 
00093 private:
00095     // (Please implement in .cc)
00096     void build_();
00097 
00098 protected:
00100     // (Please implement in .cc)
00101     static void declareOptions(OptionList& ol);
00102 
00103 public:
00104     // simply calls inherited::build() then build_()
00105     virtual void build();
00106 
00108     virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies);
00109 
00111     PLEARN_DECLARE_OBJECT(RepeatSplitter);
00112 
00113 
00114     // ********************************
00115     // *        Splitter methods      *
00116     // * (must be implemented in .cc) *
00117     // ********************************
00118 
00120     virtual int nsplits() const;
00121 
00123     virtual int nSetsPerSplit() const;
00124 
00126     virtual TVec<VMat> getSplit(int i=0);
00127 
00128 };
00129 
00130 // Declares a few other classes and functions related to this class
00131 DECLARE_OBJECT_PTR(RepeatSplitter);
00132 
00133 } // end of namespace PLearn
00134 
00135 #endif
00136 
00137 
00138 /*
00139   Local Variables:
00140   mode:c++
00141   c-basic-offset:4
00142   c-file-style:"stroustrup"
00143   c-file-offsets:((innamespace . 0)(inline-open . 0))
00144   indent-tabs-mode:nil
00145   fill-column:79
00146   End:
00147 */
00148 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :
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