Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/MeanAbsoluteDeviation.cpp
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00001 /*
00002 ** Copyright (C) 1998-2010 George Tzanetakis <gtzan@cs.uvic.ca>
00003 **
00004 ** This program is free software; you can redistribute it and/or modify
00005 ** it under the terms of the GNU General Public License as published by
00006 ** the Free Software Foundation; either version 2 of the License, or
00007 ** (at your option) any later version.
00008 **
00009 ** This program is distributed in the hope that it will be useful,
00010 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012 ** GNU General Public License for more details.
00013 **
00014 ** You should have received a copy of the GNU General Public License
00015 ** along with this program; if not, write to the Free Software
00016 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00017 */
00018 
00019 #include "../common_source.h"
00020 #include "MeanAbsoluteDeviation.h"
00021 
00022 using std::ostringstream;
00023 using namespace Marsyas;
00024 
00025 MeanAbsoluteDeviation::MeanAbsoluteDeviation(mrs_string name) : MarSystem("MeanAbsoluteDeviation", name)
00026 {
00028   addControls();
00029 }
00030 
00031 MeanAbsoluteDeviation::MeanAbsoluteDeviation(const MeanAbsoluteDeviation& a) : MarSystem(a)
00032 {
00033 }
00034 
00035 
00036 MeanAbsoluteDeviation::~MeanAbsoluteDeviation()
00037 {
00038 }
00039 
00040 MarSystem*
00041 MeanAbsoluteDeviation::clone() const
00042 {
00043   return new MeanAbsoluteDeviation(*this);
00044 }
00045 
00046 void
00047 MeanAbsoluteDeviation::addControls()
00048 {
00049 }
00050 
00051 void
00052 MeanAbsoluteDeviation::myUpdate(MarControlPtr sender)
00053 {
00054   MRSDIAG("MeanAbsoluteDeviation.cpp - MeanAbsoluteDeviation:myUpdate");
00055 
00057   MarSystem::myUpdate(sender);
00058 
00059   ctrl_onSamples_->setValue((mrs_natural)1, NOUPDATE);
00060 
00061   // Add prefix to the observation names.
00062   mrs_string inObsNames = ctrl_inObsNames_->to<mrs_string>();
00063   ctrl_onObsNames_->setValue(obsNamesAddPrefix(inObsNames,
00064                              "MeanAbsoluteDeviation_"), NOUPDATE);
00065 }
00066 
00067 void
00068 MeanAbsoluteDeviation::myProcess(realvec& in, realvec& out)
00069 {
00070   mrs_natural t,o;
00071 
00073   for (o = 0; o < inObservations_; o++)
00074   {
00075     mrs_real sum = 0.0;
00076     for (t = 0; t < inSamples_; t++)
00077     {
00078       sum += fabs( in(o,t) );
00079     }
00080     out(o, 0) = sum / inSamples_;
00081   }
00082 }