// need to modify the below function calls other files.
ds.normalizeRange(0, 0, 1);
ds.normalizeRange(1, 0, 1);
ds.normalizeRange(2, 0, 1);
ds.normalizeRange(3, 0, 1);
final Map<String, Integer> species = ds.encodeEquilateral(4);
istream.close();
final List<BasicData> trainingData = ds.extractSupervised(0, 4, 4, 2);
final RBFNetwork network = new RBFNetwork(4, 4, 2);