A CHAPTER 1. METHODOLOGY Google Trends
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Observe that the model which includes the Search engines Trends issue index offers smaller complete errors in many months, and it is mean complete error within the entire predict period is all about 3 % smaller. (Figure 1. 4). Because July 08, both models often overpredict product sales and Design 0 has a tendency to overpredict through more. It would appear that the issue index assists capture the truth that consumer curiosity about automotive buy has declined in those times.


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