Abstract
The autoregressive fractionally integrated moving average (ARFIMA) processes are one of the best-known classes of long-memory models. In the package afmtools for R, we have implemented a number of statistical tools for analyzing ARFIMA models. In particular, this package contains functions for parameter estimation, exact autocovariance calculation, predictive ability testing and impulse response function computation, among others. Furthermore, the implemented methods are illustrated with applications to real-life time series.
| Original language | English |
|---|---|
| Pages (from-to) | 2309-2331 |
| Number of pages | 23 |
| Journal | Computational Statistics |
| Volume | 28 |
| Issue number | 5 |
| DOIs | |
| State | Published - Oct 2013 |
| Externally published | Yes |
Keywords
- ARFIMA models
- Exact variance matrix
- Forecasting
- Impulse response functions
- Long-memory time series
- R
- Whittle estimation