Merge pull request #212 from apappu97/master

        featurizer=featurizer,

        verbosity="low")

    return loader.featurize(input_file, self.data_dir)

  def load_sparse_multitask_dataset(self):

    """Load sparse tox multitask data, sample dataset."""

    if os.path.exists(self.data_dir):

      shutil.rmtree(self.data_dir)

    featurizer = CircularFingerprint(size=1024)

    tasks = ["task1", "task2", "task3", "task4", "task5", "task6",

             "task7", "task8", "task9"]

    input_file = os.path.join(

        self.current_dir, "../../models/tests/sparse_multitask_example.csv")

    loader = DataLoader(

        tasks=tasks,

        smiles_field="smiles",

        featurizer=featurizer,

        verbosity="low")

    return loader.featurize(input_file, self.data_dir)