indicators.py 文件源码

def rolling_weighted_mean(series, window=200, min_periods=None):
    min_periods = window if min_periods is None else min_periods
    try:
        return series.ewm(span=window, min_periods=min_periods).mean()
    except BaseException:
        return pd.ewma(series, span=window, min_periods=min_periods)


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