static void Main(string[] argv)
    {
        modshogun.init_shogun_with_defaults();
        double width = 1.4;
        int size_cache = 10;

        DoubleMatrix traindata_real = Load.load_numbers("../data/fm_train_real.dat");
        DoubleMatrix testdata_real = Load.load_numbers("../data/fm_test_real.dat");

        RealFeatures feats_train = new RealFeatures(traindata_real);
        RealFeatures feats_test = new RealFeatures(testdata_real);

        RandomFourierGaussPreproc preproc = new RandomFourierGaussPreproc();
        preproc.init(feats_train);
        feats_train.add_preprocessor(preproc);
        feats_train.apply_preprocessor();
        feats_test.add_preprocessor(preproc);
        feats_test.apply_preprocessor();

        Chi2Kernel kernel = new Chi2Kernel(feats_train, feats_train, width, size_cache);

        DoubleMatrix km_train = kernel.get_kernel_matrix();
        kernel.init(feats_train, feats_test);
        DoubleMatrix km_test = kernel.get_kernel_matrix();

        Console.WriteLine(km_train.ToString());
        Console.WriteLine(km_test.ToString());

        modshogun.exit_shogun();
    }
    public static void Main()
    {
        modshogun.init_shogun_with_defaults();
        double width = 1.4;
        int size_cache = 10;

        double[,] traindata_real = Load.load_numbers("../data/fm_train_real.dat");
        double[,] testdata_real = Load.load_numbers("../data/fm_test_real.dat");

        RealFeatures feats_train = new RealFeatures(traindata_real);
        RealFeatures feats_test = new RealFeatures(testdata_real);

        LogPlusOne preproc = new LogPlusOne();
        preproc.init(feats_train);
        feats_train.add_preprocessor(preproc);
        feats_train.apply_preprocessor();
        feats_test.add_preprocessor(preproc);
        feats_test.apply_preprocessor();

        Chi2Kernel kernel = new Chi2Kernel(feats_train, feats_train, width, size_cache);

        double[,] km_train = kernel.get_kernel_matrix();
        kernel.init(feats_train, feats_test);
        double[,] km_test = kernel.get_kernel_matrix();

        foreach (double item in km_train)
            Console.Write(item);

        foreach (double item in km_test)
            Console.Write(item);

        modshogun.exit_shogun();
    }
    public static void Main()
    {
        modshogun.init_shogun_with_defaults();
        double width      = 1.4;
        int    size_cache = 10;

        double[,] traindata_real = Load.load_numbers("../data/fm_train_real.dat");
        double[,] testdata_real  = Load.load_numbers("../data/fm_test_real.dat");

        RealFeatures feats_train = new RealFeatures(traindata_real);
        RealFeatures feats_test  = new RealFeatures(testdata_real);

        PruneVarSubMean preproc = new PruneVarSubMean();

        preproc.init(feats_train);
        feats_train.add_preprocessor(preproc);
        feats_train.apply_preprocessor();
        feats_test.add_preprocessor(preproc);
        feats_test.apply_preprocessor();


        Chi2Kernel kernel = new Chi2Kernel(feats_train, feats_train, width, size_cache);

        double[,] km_train = kernel.get_kernel_matrix();
        kernel.init(feats_train, feats_test);
        double[,] km_test = kernel.get_kernel_matrix();

        //  Parse and Display km_train
        Console.Write("km_train:\n");
        int numRows = km_train.GetLength(0);
        int numCols = km_train.GetLength(1);

        for (int i = 0; i < numRows; i++)
        {
            for (int j = 0; j < numCols; j++)
            {
                Console.Write(km_train[i, j] + " ");
            }
            Console.Write("\n");
        }

        //  Parse and Display km_test
        Console.Write("\nkm_test:\n");
        numRows = km_test.GetLength(0);
        numCols = km_test.GetLength(1);

        for (int i = 0; i < numRows; i++)
        {
            for (int j = 0; j < numCols; j++)
            {
                Console.Write(km_test[i, j] + " ");
            }
            Console.Write("\n");
        }

        modshogun.exit_shogun();
    }
    public static void Main()
    {
        modshogun.init_shogun_with_defaults();
        double width = 1.4;
        int size_cache = 10;

        double[,] traindata_real = Load.load_numbers("../data/fm_train_real.dat");
        double[,] testdata_real = Load.load_numbers("../data/fm_test_real.dat");

        RealFeatures feats_train = new RealFeatures(traindata_real);
        RealFeatures feats_test = new RealFeatures(testdata_real);

        PruneVarSubMean preproc = new PruneVarSubMean();
        preproc.init(feats_train);
        feats_train.add_preprocessor(preproc);
        feats_train.apply_preprocessor();
        feats_test.add_preprocessor(preproc);
        feats_test.apply_preprocessor();

        Chi2Kernel kernel = new Chi2Kernel(feats_train, feats_train, width, size_cache);

        double[,] km_train = kernel.get_kernel_matrix();
        kernel.init(feats_train, feats_test);
        double[,] km_test = kernel.get_kernel_matrix();

        //  Parse and Display km_train
        Console.Write("km_train:\n");
        int numRows = km_train.GetLength(0);
        int numCols = km_train.GetLength(1);

        for(int i = 0; i < numRows; i++){
            for(int j = 0; j < numCols; j++){
                Console.Write(km_train[i,j] +" ");
            }
            Console.Write("\n");
        }

        //  Parse and Display km_test
        Console.Write("\nkm_test:\n");
        numRows = km_test.GetLength(0);
        numCols = km_test.GetLength(1);

        for(int i = 0; i < numRows; i++){
            for(int j = 0; j < numCols; j++){
                Console.Write(km_test[i,j] +" ");
            }
            Console.Write("\n");
        }

        modshogun.exit_shogun();
    }
    public static void Main()
    {
        modshogun.init_shogun_with_defaults();
        double width      = 1.4;
        int    size_cache = 10;

        double[,] traindata_real = Load.load_numbers("../data/fm_train_real.dat");
        double[,] testdata_real  = Load.load_numbers("../data/fm_test_real.dat");

        RealFeatures feats_train = new RealFeatures(traindata_real);
        RealFeatures feats_test  = new RealFeatures(testdata_real);

        LogPlusOne preproc = new LogPlusOne();

        preproc.init(feats_train);
        feats_train.add_preprocessor(preproc);
        feats_train.apply_preprocessor();
        feats_test.add_preprocessor(preproc);
        feats_test.apply_preprocessor();


        Chi2Kernel kernel = new Chi2Kernel(feats_train, feats_train, width, size_cache);

        double[,] km_train = kernel.get_kernel_matrix();
        kernel.init(feats_train, feats_test);
        double[,] km_test = kernel.get_kernel_matrix();

        foreach (double item in km_train)
        {
            Console.Write(item);
        }

        foreach (double item in km_test)
        {
            Console.Write(item);
        }

        modshogun.exit_shogun();
    }