## Abstract The method of ordinary least squares (OLS) and generalizations of it have been the mainstay of most forecasting methodologies for many years. It is wellβknown, however, that outliers or unusual values can have a large influence on leastβsquares estimators. Users of automatic forecasting
Time-series forecasting using fractional differencing
β Scribed by Andrew Sutcliffe
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 515 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0277-6693
No coin nor oath required. For personal study only.
β¦ Synopsis
The main failure of ARIMA modelling as used in practice are the limiting constraints imposed by differencing to achieve stationarity. The use of fractional differencing opens up a much wider and realistic behaviour for the trend and seasonal components than traditional integer differencing. This paper shows several advantages of using fractional differencing for forecasting monthly data. These advantages are illustrated using a sample of previously modelled time-series data selected from the literature KEY WORDS Fractional differencing ARIMA models Author's biography: Andrew Sutcliffe has an honours degree in mathematics and statistics from Flinders University, South Australia. Currently he is working as a Principal Research Officer at ABARE researching time-series forecasting and decomposition. He has been involved in the application of time-series methods at the Australian Bureau of Statistics and ABARE since 1975.
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