Time Series Forecasting, Fourier, Ensemble Method, Data Science, Signal Processing.
X_train.columns.to_list()[0 : trend_order + 1] model_trend = LinearRegression(fit_intercept=False) _ = model_trend.fit(X_train[trend_columns], y_train) y_trend_fore = pd.Series(model_trend.predict(X_test[trend_columns]), index=index_test) y_trend_past =