[mlpack-git] [mlpack/mlpack] add cli executable for data_split (#650)

[Keon Kim]

> +  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;
> +
> +  // Cast double matrix to string matrix
> +  //Mat<string> training = conv_to<Mat<string>>::from(get<0>(value));
> +  //Mat<string> test = conv_to<Mat<string>>::from(get<1>(value));
> +  //Mat<string> trainingLabels = conv_to<Mat<string>>::from(get<2>(value));
> +  //Mat<string> testLabels = conv_to<Mat<string>>::from(get<3>(value));
> +
> +  //Cast double matrix to string matrix
> +  mat training = get<0>(value);
> +  mat test = get<1>(value);
> +  mat trainingLabels = get<2>(value);
> +  mat testLabels = get<3>(value);

I need to cast current Mat<double> into string, but armadillo doesn't seem to provide Matrix with strings.
I am searching for the best way to do this.

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