statsmodels.tsa.seasonal.STL.fit¶ STL.fit(inner_iter=None, outer_iter=None)¶ Estimate season, trend and residuals components. Parameters:¶ inner_iter : {int, None}, optional¶Number of iterations to perform in the inner loop. If not provided uses 2 if robust is True, or 5 if not. outer_iter : {int, None}, optional¶Number of iterations to perform in the outer loop. If not provided uses 15 if robust is True, or 0 if not. Returns:¶ Estimation results. Return type:¶ DecomposeResult