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Thinkscript 在他们的网站上有 Lindev 代码：

script LinDevTS {
    input data = close;
    input length = 12;
    def avgData = Average(data, length);
    plot LinDevTS = ( fold i = 0 to length with LD do LD + AbsValue(avgData - GetValue(data, i)) ) / length;
}

declare lower;

input length = 12;

#plot LinDev1 = LinDev(close, length);
plot LinDev2 = LinDevTS(close, length);

此处的原始代码：https ://tlc.thinkorswim.com/center/reference/thinkScript/Functions/Statistical/LinDev

我正在尝试将其转换为 python，但出现关键错误。我的代码如下：

length = 12    
df["avgData"] = df["close"].rolling(window=length).mean()
df["LinDevTS"] = np.repeat(nan, len(df))
for i in range(0, len(df)):
    for j in range(0, length):
        buffer = np.isnan(df['j'])
        df['j'] = df['j'].fillna(0)
        df['j'] = df['j'].astype(int)
        df["GetValue"] = np.repeat(0.00, length)
        for k in range(0, length):
            if pd.isnull(df.close[k]) == False and k - df["j"][k] < length:
                df["GetValue"][k] = df["close"][k - df["j"][k]]
        df.loc[buffer, 'j'] = np.nan
        df.loc[df['GetValue'] == 0.00,'GetValue'] = np.nan
        df.loc[buffer, 'GetValue'] = np.nan 
    df["LinDevTS"][i] = df["LinDevTS"][i-1] + (abs(df["avgData"][i] - df["GetValue"][i])) / length

有任何想法吗？谢谢，

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