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When I decompose my time-series Seasonal plot looks like this, what have I could do wrong? Here is code that i used for decomposition

import statsmodels.api as sm

decomposition = sm.tsa.seasonal_decompose(temp_df['depth_to_groundwater'], model='additive', freq=12)

fig = decomposition.plot()
fig.set_figwidth(12)
fig.set_figheight(8)
fig.suptitle('Decomposition of time series')
plt.show()

Talking about my time series data it is negative, , maybe it could have influenced the plot enter image description here

Ruslan Pylypyuk
  • 47
  • 7

1 Answers1

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Try to increase your freq. 12 is probably too low for your model. A freq like 365 would solve it

Sophia Vei
  • 1
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