featureengineering.cpp File Reference

#include <iostream>
#include <cosan/data/CosanData.h>
#include <cosan/base/CosanBO.h>
#include <cosan/preprocessing/overunderflow.h>
#include <cosan/preprocessing/missingvalues.h>
#include <cosan/preprocessing/normalizer.h>
#include <cosan/preprocessing/standardScaler.h>
#include <cosan/preprocessing/encoder.h>
#include <cosan/preprocessing/minmaxscaler.h>
#include <cosan/preprocessing/polynomialfeatures.h>
#include <cosan/preprocessing/principalcomponentanalysis.h>
#include <cosan/preprocessing/customtransform.h>

Go to the source code of this file.

Typedefs
typedef double	NumericType

Functions
int	main ()

Typedef Documentation

NumericType

typedef double NumericType

Definition at line 18 of file featureengineering.cpp.

Function Documentation

main()

int main

(

)

Definition at line 19 of file featureengineering.cpp.

           {
    Cosan::CosanRawData<NumericType> CRD("./example_data/toy2/X_.csv","./example_data/toy2/Y_.csv");
    Cosan::OverUnderFlow ouf(CRD);
    Cosan::MissingValues MissV(CRD);
    Cosan::Normalizer NM(CRD,2);   
//    Cosan::StandardScaler SS(CRD);
//    Cosan::Encoder ED(CRD,true);
//    NumericType lb=0,ub=1;
//    Cosan::MinmaxScaler MMS(CRD,lb,ub);//transform X to domain [lb,ub]. If not provided, default value lb =0,ub=1
//    std::vector<std::pair<gsl::index,NumericType>> um = {{0,1.2},{1,1.1}};
//    Cosan::PolynomialFeatures PF(CRD,um,true);//um is a vector of pair where each entries indicates index and power to be generated. The third argument indicates whether the new features should be added to CRD.X. Default is false.
//    std::pair<gsl::index,gsl::index> pair = {4,5};
//    PF.SetInteractionFeatures(CRD,pair,true);//to generative interactive features from column 4 and 5.
    gsl::index ncomponent = 5;
    Cosan::PrincipalComponentAnalysis PCA(CRD,ncomponent);
//    gsl::index nrows = CRD.GetrowsX();
//    std::default_random_engine generator;
//    std::uniform_real_distribution<NumericType> distribution(0,1);
//    std::vector<NumericType> newInputX(nrows);
//    for (gsl::index  i = 0;i<nrows;i++){
//        newInputX[i] = distribution(generator);
//    }
//    Cosan::CustomTransform CT(CRD,newInputX);
 
    return 0;
}