RRV calculation alpha 2

[bluesgu]

In description, RRV_DFA_alpha2 need at least 640 breath intervals to calculate. But in rsp_rrv.py, line 237-245: if len(bbi) > 65: out["DFA_alpha2"] = fractal_dfa(bbi, scale=np.arange(16, 65), multifractal=False)[0] # For multifractal mdfa_alpha2, _ = fractal_dfa( bbi, multifractal=True, q=np.arange(-5, 6), scale=np.arange(16, 65) ) for k in mdfa_alpha2.columns: out["MFDFA_alpha2_" + k] = mdfa_alpha2[k].values[0] return out it seems Alpha 2 just need more than 65 breath interval to calculate which is around 3 minute.