PLearn 0.1
SortRowsVMatrix.h
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00001 // -*- C++ -*-
00002 
00003 // PLearn (A C++ Machine Learning Library)
00004 // Copyright (C) 2003 Olivier Delalleau
00005 //
00006 // Redistribution and use in source and binary forms, with or without
00007 // modification, are permitted provided that the following conditions are met:
00008 //
00009 //  1. Redistributions of source code must retain the above copyright
00010 //     notice, this list of conditions and the following disclaimer.
00011 //
00012 //  2. Redistributions in binary form must reproduce the above copyright
00013 //     notice, this list of conditions and the following disclaimer in the
00014 //     documentation and/or other materials provided with the distribution.
00015 //
00016 //  3. The name of the authors may not be used to endorse or promote
00017 //     products derived from this software without specific prior written
00018 //     permission.
00019 //
00020 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
00021 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00022 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
00023 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00024 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
00025 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00026 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00027 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00028 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00029 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00030 //
00031 // This file is part of the PLearn library. For more information on the PLearn
00032 // library, go to the PLearn Web site at www.plearn.org
00033 
00034 
00035 /* *******************************************************
00036  * $Id: SortRowsVMatrix.h 8801 2008-04-11 19:13:48Z tihocan $
00037  ******************************************************* */
00038 
00039 
00042 #ifndef SortRowsVMatrix_INC
00043 #define SortRowsVMatrix_INC
00044 
00045 #include "SelectRowsVMatrix.h"
00046 
00047 namespace PLearn {
00048 using namespace std;
00049 
00052 class SortRowsVMatrix: public SelectRowsVMatrix
00053 {
00054 
00055 private:
00056 
00057     typedef SelectRowsVMatrix inherited;
00058 
00059 public:
00060 
00062     bool ignore_missing_fields;
00063     bool increasing_order;
00064     TVec<int> sort_columns;
00065     TVec<string> sort_columns_by_name;
00066 
00067 public:
00068 
00069     SortRowsVMatrix();
00070 
00071     PLEARN_DECLARE_OBJECT(SortRowsVMatrix);
00072 
00073 
00074     virtual void build();
00075     virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies);
00076 
00077 protected:
00078 
00079     static void declareOptions(OptionList &ol);
00080 
00081 private:
00082 
00083     void build_();
00084 
00089     static void sortRows(
00090         VMat& m, TVec<int>& indices, TVec<int>& sort_columns,
00091         int istart, int iend, int colstart, bool increasing_order);
00092 
00093 };
00094 
00095 DECLARE_OBJECT_PTR(SortRowsVMatrix);
00096 
00097 } // end of namespace PLearn
00098 #endif
00099 
00100 
00101 /*
00102   Local Variables:
00103   mode:c++
00104   c-basic-offset:4
00105   c-file-style:"stroustrup"
00106   c-file-offsets:((innamespace . 0)(inline-open . 0))
00107   indent-tabs-mode:nil
00108   fill-column:79
00109   End:
00110 */
00111 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :
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