PLearn 0.1
VMat_computeStats.cc
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00001 // -*- C++ -*-
00002 
00003 // VMat_computeStats.cc
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_computeStats.cc 10247 2009-06-09 17:57:15Z nouiz $
00037  ******************************************************* */
00038 
00039 // Authors: Pascal Vincent
00040 
00044 #include <plearn/base/Object.h>
00045 #include "VMat_computeStats.h"
00046 #include <plearn/vmat/VMat.h>
00047 #include <plearn/math/StatsCollector.h>
00048 
00049 namespace PLearn {
00050 using namespace std;
00051 
00052 TVec<StatsCollector> computeStats(VMat m, int maxnvalues, bool report_progress)
00053 {
00054     int w = m.width();
00055     int l = m.length();
00056     PLCHECK(w>=0);
00057     TVec<StatsCollector> stats(w, StatsCollector(maxnvalues));
00058     Vec v(w);
00059     PP<ProgressBar> pbar;
00060     if (report_progress)
00061         pbar = new ProgressBar("Computing statistics", l);
00062     for(int i=0; i<l; i++)
00063     {
00064         m->getRow(i,v);
00065         for(int j=0; j<w; j++)
00066             stats[j].update(v[j]);
00067         if (report_progress)
00068             pbar->update(i);
00069     }
00070     return stats;
00071 }
00072 
00073 
00074 } // end of namespace PLearn
00075 
00076 
00077 /*
00078   Local Variables:
00079   mode:c++
00080   c-basic-offset:4
00081   c-file-style:"stroustrup"
00082   c-file-offsets:((innamespace . 0)(inline-open . 0))
00083   indent-tabs-mode:nil
00084   fill-column:79
00085   End:
00086 */
00087 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :
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