PLearn 0.1
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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 :