Loads data from module_path/data/data_file_name.
    Parameters
    ----------
    data_file_name : String. Name of csv or dill file to be loaded from
    module_path/data/data_file_name. For example 'salt_info.csv'.
    Returns
    -------
    data : Pandas DataFrame
        A data frame. For example with each row representing one
        salt and each column representing the features of a given
        salt.

def load_data(data_file_name, dillFile=False):
    """Loads data from module_path/data/data_file_name.
    Parameters
    ----------
    data_file_name : String. Name of csv or dill file to be loaded from
    module_path/data/data_file_name. For example 'salt_info.csv'.
    Returns
    -------
    data : Pandas DataFrame
        A data frame. For example with each row representing one
        salt and each column representing the features of a given
        salt.
    """
    module_path = dirname(__file__)
    if dillFile:
        with open(join(module_path, 'data', data_file_name), 'rb') as \
                dill_file:
            data = dill.load(dill_file)
    else:
        with open(join(module_path, 'data', data_file_name), 'rb') as csv_file:
            data = pd.read_csv(csv_file, encoding='latin1')
    return data