example_logisticregression_w0.cpp

 
#include <iostream>
#include <Pds/Ra>
#include <Pds/Ml>
        
int main(void)
{
    Pds::Ra::Randomize();
    Pds::Vector Yp;
    
    // Generating data
    Pds::Matrix X(Pds::Ra::TextFormat,"../test/hard-data-x.txt");
    Pds::Vector Y(Pds::Ra::TextFormat,"../test/hard-data-y.txt");
    Pds::Vector W0;
    
    Pds::Octave::DAspect=true;
    Pds::Octave::XLabel="x_1";
    Pds::Octave::YLabel="x_2";
    Pds::Octave::Plot::PointsX2DY(X,Y,"testando.m","example_logisticregression_w0_data.png");
    
    // Create W0 using training data
    W0=Pds::LogisticModel::GetW0MeanMethod(X);
    W0.T().Print("W0=Pds::LogisticModel::GetW0MeanMethod(X);\n");
    
    Yp=Pds::LogisticModel::Classify(W0,X);
    
    Pds::Octave::Plot::PointsX2DYW(X,Yp,W0,"testando.m","example_logisticregression_w0_mean.png");
    
    // Create W0 using training data
    W0=Pds::LogisticModel::GetW0CornerMeanMethod(X);
    W0.T().Print("W0=Pds::LogisticModel::GetW0CornerMeanMethod(X);\n");    
    
    Yp=Pds::LogisticModel::Classify(W0,X);
    
    Pds::Octave::Plot::PointsX2DYW(X,Yp,W0,"testando_corner.m","example_logisticregression_w0_meancorner.png");
    
    // Create W0 using training data
    W0=Pds::LogisticModel::GetW0MeanSquareMethod(X);
    W0.T().Print("W0=Pds::LogisticModel::GetW0MeanSquareMethod(X);\n");
    
    Yp=Pds::LogisticModel::Classify(W0,X);
    
    Pds::Octave::Plot::PointsX2DYW(X,Yp,W0,"testando.m","example_logisticregression_w0_meansquare.png");
    
    return 0;
}