def _check_cooling_parameters(radiuscooling, scalecooling):
    """Helper function to verify the cooling parameters of the training.
    """
    if radiuscooling != "linear" and radiuscooling != "exponential":
        raise Exception("Invalid parameter for radiuscooling: " +
                        radiuscooling)
    if scalecooling != "linear" and scalecooling != "exponential":
        raise Exception("Invalid parameter for scalecooling: " +
                        scalecooling)