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9. Perform a forecast combinations on a data of your choice using the same models as in 12.4 (2nd Ed) and recreate Figure 12.5 for your data. Comment on the results. Safari File Edit View History Bookmarks Develop Window Help 181 0 6 4 9 8 0 Tue May 21 3:03 PM .. . 12.8 Forecasting on training and test... STL 12.8 Forecasting on training and test... series 12.9 Dealing with missing values and... 3 - A ARIMA 12.10 Further reading Combination Appendix: Using R $ billion ETS Appendix: For instructors NNAR Appendix: Reviews STL Translations TBATS About the authors 1 Buy a print or downloadable version Report an error Bibliography 1990 2000 2010 Year Published by OTextsTM with bookdown 200m R PsSafari File Edit View History Bookmarks Develop Window Help 1 0 6 7 9 8 0 Tue May 21 3:03 PM .. . ETS ARIMA TBATS Combination > # 0 . 13700 0 . 15920 0. 19310 0.31769 0 . 09406 0 . 07161 12.8 Forecasting on training and test... 12.9 Dealing with missing values and... TBATS does particularly well with this series, but the combination approach is even better. For 12.10 Further reading other data, TBATS may be quite poor, while the combination approach is almost always close Appendix: Using R to, or better than, the best component method. Appendix: For instructors Appendix: Reviews Bibliography Translations About the authors Bates, J. M., & Granger, C. W. J. (1969). The combination of forecasts. Operational Research Buy a print or downloadable version Quarterly, 20(4), 451-468. [DOI] Report an error Clemen, R. (1989). Combining forecasts: A review and annotated bibliography. International Bibliography Journal of Forecasting, 5(4), 559-583. [DOI] Published by OTextsTM with bookdown zoom O R Ps