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/*=========================================================================
Program: ORFEO Toolbox
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Centre National d'Etudes Spatiales. All rights reserved.
See OTBCopyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "itkMacro.h"
#include "otbDecisionTree.h"
enum WheatTypes { WinterWheat, SummerWheat };
int otbDecisionTreeWithRealValues(int itkNotUsed(argc), char* itkNotUsed(argv) [])
{
/** We build the following decision tree
-------------
( DOY LE 100 )
-------------
Yes -/ -- No
--/ \--
------------- -------------
( NDVI GT 0.7 ) ( NDVI GT 0.7 )
------------- -------------
/ -- /\
Yes -/ \- No Yes-/ \- No
-/ \ -/ \-
WW SW SW WW
*/
typedef double AttributeValueType;
typedef otb::DecisionTree< AttributeValueType, WheatTypes > DecisionTreeType;
DecisionTreeType::Pointer decisionTree = DecisionTreeType::New();
DecisionTreeType::Pointer doyLE100Tree = DecisionTreeType::New();
DecisionTreeType::Pointer doyGT100Tree = DecisionTreeType::New();
decisionTree->SetAttribute( 0 );
decisionTree->AddBranch( 100, DecisionTreeType::GT, doyGT100Tree );
decisionTree->AddBranch( 100, DecisionTreeType::LE, doyLE100Tree );
doyLE100Tree->SetAttribute( 1 );
doyLE100Tree->AddBranch( 0.7, DecisionTreeType::LT, SummerWheat );
doyLE100Tree->AddBranch( 0.7, DecisionTreeType::GE, WinterWheat );
doyGT100Tree->SetAttribute( 1 );
doyGT100Tree->AddBranch( 0.7, DecisionTreeType::LE, WinterWheat );
doyGT100Tree->AddBranch( 0.7, DecisionTreeType::GT, SummerWheat );
// Build some examples for testing
DecisionTreeType::ExampleType ww_in_summer; //(DoY), (NDVI)
ww_in_summer.push_back(200);
ww_in_summer.push_back(0.2);
DecisionTreeType::ExampleType ww_in_winter;
ww_in_winter.push_back(70);
ww_in_winter.push_back(0.9);
DecisionTreeType::ExampleType sw_in_winter;
sw_in_winter.push_back(60);
sw_in_winter.push_back(0.1);
DecisionTreeType::ExampleType sw_in_summer;
sw_in_summer.push_back(220);
sw_in_summer.push_back(0.76);
std::cout << "ww_in_summer" << std::endl;
if( decisionTree->Decide( ww_in_summer ) != WinterWheat )
{
std::cerr << "ww_in_summer yields " << decisionTree->Decide( ww_in_summer ) << std::endl;
return EXIT_FAILURE;
}
std::cout << "sw_in_winter" << std::endl;
if( decisionTree->Decide( sw_in_winter ) != SummerWheat )
{
std::cerr << "sw_in_winter yields " << decisionTree->Decide( sw_in_winter ) << std::endl;
return EXIT_FAILURE;
}
std::cout << "sw_in_summer" << std::endl;
if( decisionTree->Decide( sw_in_summer ) != SummerWheat )
{
std::cerr << "sw_in_summer yields " << decisionTree->Decide( sw_in_summer ) << std::endl;
return EXIT_FAILURE;
}
std::cout << "ww_in_winter" << std::endl;
if( decisionTree->Decide( ww_in_winter ) != WinterWheat )
{
std::cerr << "ww_in_winter yields " << decisionTree->Decide( ww_in_winter ) << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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