def tracking_error(r_a, r_b):
    '\n    Returns the Tracking Error between the two return series\n    '
    return np.sqrt(((r_a - r_b) ** 2).sum())
Returns the Tracking Error between the two return series
def tracking_error(r_a, r_b):
    '\n    \n    '
    return np.sqrt(((r_a - r_b) ** 2).sum())