example.cpp

  // Load Data and Labels in double types
  data::Load(inputFile, data, true);
  data::Load(inputLabel, labels, true);
  arma::rowvec labels_row = labels.row(0); // extract first row

  // Split Data
  const auto value = data::TrainTestSplit(data, labels_row, testRatio);
  Log::Info << "Train Data Count: " << get<0>(value).n_cols << endl;
  Log::Info << "Test Data Count: " << get<1>(value).n_cols << endl;
  Log::Info << "Train Label Count: " << get<2>(value).n_cols << endl;
  Log::Info << "Test Label Count: " << get<3>(value).n_cols << endl;

  // This is what I am trying to do: (of course the code doesn't work because armadillo does not support string type)
  // Cast double matrix to string matrix, conv_to reference here -> (http://arma.sourceforge.net/docs.html#conv_to)
  Mat<string> training = arma::conv_to<Mat<string>>::from(get<0>(value));
  Mat<string> test = arma::conv_to<Mat<string>>::from(get<1>(value));
  Mat<string> trainingLabels = arma::conv_to<Mat<string>>::from(get<2>(value));
  Mat<string> testLabels = arma::conv_to<Mat<string>>::from(get<3>(value));

  data::Save(trainingFile, training, false);
  data::Save(testFile, test, false);
  data::Save(trainingLabelsFile, trainingLabels, false);
  data::Save(testLabelsFile, testLabels, false);