def METHOD_NAME(self):
    """
    """
    bwith = freqattributes.bandwidth(self.data_win, self.fs, self.smoothie,
                                     self.fk)
    rms = np.sqrt(np.sum((bwith[0] - self.res[:, 16]) ** 2) /
                  np.sum(self.res[:, 16] ** 2))
    assert rms < 1.0e-5
    rms = np.sqrt(np.sum((bwith[1] - self.res[:, 17]) ** 2) /
                  np.sum(self.res[:, 17] ** 2))
    assert rms < 1.0e-5