File: stl_plot.py

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import numpy as np
import matplotlib.pyplot as plt
from pandas.plotting import register_matplotlib_converters

from statsmodels.datasets import co2
from statsmodels.tsa.seasonal import STL

register_matplotlib_converters()
data = co2.load().data
data = data.resample('M').mean().ffill()

res = STL(np.squeeze(data)).fit()
res.plot()
plt.show()