题目没有什么思路
The quarterly gross domestic product implicit price deflator is often used
as a measure of inflation. The file q-gdpdef.txt contains the data for the
United States from the first quarter of 1947 to the last quarter of 2008. Data
format is year, month, day, and deflator. The data are seasonally adjusted
and equal to 100 for year 2000. Build an ARIMA model for the series and
check the validity of the fitted model. Use the fitted model to predict the
inflation for each quarter of 2009. The data are obtained from the Federal
Reserve Bank of St Louis.
关于#ARIMA#的问题,如何解决?(语言-r语言)
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