love_gannon.py 文件源码

def zero_pad_series(series):
    """
    """
    N = len(series)
    next_log2 = math.ceil(math.log(N, 2))
    M = int(2**next_log2 - N)
    indices = [series.index[-1] + PD.Timedelta(seconds=x) for x in range(1, M + 1)]
    zero_series = PD.Series(data=NP.zeros(M),
                            index=indices)
    return PD.concat([series, zero_series])