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- import numpy as np
- import pandas as pd
- import statsmodels.api as sm
- def smooth(y:pd.Series,frac):
- y = y.dropna()
- index = y.index
- x = np.arange(len(y))
- lowess_result = sm.nonparametric.lowess(y, x, frac=frac)
- return pd.Series(lowess_result[:, 1], index=index)
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