PLearn 0.1
VMat_operations.h
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00001 // -*- C++ -*-
00002 
00003 // VMat_operations.h
00004 //
00005 // Copyright (C) 2004 Pascal Vincent
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: VMat_operations.h 5557 2006-05-10 20:36:58Z lamblin $
00037  ******************************************************* */
00038 
00039 // Authors: Pascal Vincent
00040 
00044 #ifndef VMat_operations_INC
00045 #define VMat_operations_INC
00046 
00047 // Put includes here
00048 #include <map>
00049 #include <plearn/math/TVec.h>
00050 
00051 namespace PLearn {
00052 using namespace std;
00053 
00054 class VMat;
00055 
00065 VMat grep(VMat d, int col, Vec values, bool exclude=false);
00066 
00068 map< real, int> countOccurencesInColumn(VMat m, int col);
00069 
00072 map< real, TVec<int> > indicesOfOccurencesInColumn(VMat m, int col);
00073 
00079 VMat grep(VMat d, int col, Vec values, const string& indexfile, bool exclude=false);
00080 
00085 VMat filter(VMat d, const string& indexfile);
00086 
00088 VMat shuffle(VMat d);
00089 
00096 VMat bootstrap(VMat d, bool reorder=true, bool norepeat=true);
00097 
00103 VMat rebalanceNClasses(VMat inputs, int nclasses, const string& filename);
00104 
00107 void fullyRebalance2Classes(VMat inputs, const string& filename, bool save_indices=true);
00108 
00114 VMat temporalThreshold(VMat distr, int threshold_date, bool is_before,
00115                        int yyyymmdd_col);
00116 VMat temporalThreshold(VMat distr, int threshold_date, bool is_before,
00117                        int yyyy_col, int mm_col, int dd_col);
00118 
00119 
00120 
00121 } // end of namespace PLearn
00122 
00123 #endif
00124 
00125 
00126 /*
00127   Local Variables:
00128   mode:c++
00129   c-basic-offset:4
00130   c-file-style:"stroustrup"
00131   c-file-offsets:((innamespace . 0)(inline-open . 0))
00132   indent-tabs-mode:nil
00133   fill-column:79
00134   End:
00135 */
00136 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :
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