All data sets required for the examples and exercises in the book "Forecasting: principles and practice" (2nd ed, 2018) by Rob J Hyndman and George Athanasopoulos <http://OTexts.org/fpp2/>. All packages required to run the examples are also loaded.
I am reading FPP2. I don't know where I can post a question, so I post here to see if I can get an answer from Rob. In Chapter 8 ARIMA models, almost all the forecasts for future time are just flat trend lines. I wonder if this is the case, what is the use of ARIMA models? Examples: Figure 8.8 @ p.237, Figure 8.15 @ p.247, Figure 8.27 @ p.264.
robjhyndman
commented
5 years ago
I am reading FPP2. I don't know where I can post a question, so I post here to see if I can get an answer from Rob. In Chapter 8 ARIMA models, almost all the forecasts for future time are just flat trend lines. I wonder if this is the case, what is the use of ARIMA models? Examples: Figure 8.8 @ p.237, Figure 8.15 @ p.247, Figure 8.27 @ p.264.