example_qdc_2d.cpp

Programa para el testeo de las funciones.Para compilar o código example_qdc_2d.cpp:

g++ -static -o example_qdc_2d example_qdc_2d.cpp -lpdsmlmm -lpdsramm -lpdsspmm

Para executar o programa:

./example_qdc_2d

Retornando por consola:

----- QDC :
Sinv[0]:
18.565167311085   -0.90809691030792 
-0.90809691030792 13.18762716821    
Sinv[1]:
2.4131706071484   0.064585785743084 
0.064585785743084 16.725251275197   
Sinv[2]:
17.722761570156  0.11962030025086 
0.11962030025086 16.016827871601  
Mu[0]:
0.97995628370661    -0.0014915775725381 
Mu[1]:
-0.47314909710027 0.85054042360651  
Mu[2]:
-0.51198576577415 -0.85678652136553 
C[0]:   1.6499838418987
C[1]:   0.75026659199006
C[2]:   1.7256073512435
Label[0]:       0
Label[1]:       1
Label[2]:       2

Tarining data:

Training data

Confusion matrix:

Confusion matrix

Decision boundaries:

Regions

Código example_qdc_2d.cpp:

 
#include <iostream>
#include <Pds/Ra>
#include <Pds/Ml>
    
int main(void)
{
    unsigned int L=300;
    unsigned int K=3;
    Pds::Octave::MarkerSize=64;
    Pds::Octave::YLimits=true;
    Pds::Octave::XLimits=true;
    Pds::Octave::DAspect=true;
    
    Pds::Matrix X;
    Pds::Vector Y,Ys;
    Pds::ConfusionMatrix CM;
        
    // Load dataset of L samples an K gaussian normal.
    Pds::DataSet::Classification::LoadKGaussian(L,K,X,Y);
    
    // Plor de dataset X with label Y.
    Pds::Octave::Plot::ScatterX2DY(X,Y,"testando3d.m","example_qdc_2d_data.png");
 
    // Calculate the Qdc classifier.
    Pds::QDC Qdc(X,Y);
    Qdc.Print("----- QDC :\n");
 
    // Test of training
    Ys=Qdc.Predict(X);
 
    // Confusion matrix
    CM=Pds::ConfusionMatrix::Calculate(Ys,Y);
    Pds::Octave::Plot::ConfMatrix(CM.Data,Qdc.GetLabel(),"testando.m","example_qdc_2d_ConfMatrix.png");
 
    // Load new dataset Xt.
    Pds::Matrix Xt(10*L,2);
    Xt.FillRandU(-1.5,1.5);
    
    // Predict the datset Xt.
    Ys=Qdc.Predict(Xt);
    
    // Print the result of classification.
    Pds::Octave::Plot::ScatterX2DY(Xt,Ys,"testando3d.m","example_qdc_2d_class.png");
    
 
    return 0;
}