Statistical analysis of autoregressive fractionally integrated moving average models in R

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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 languageEnglish
Pages (from-to)2309-2331
Number of pages23
JournalComputational Statistics
Volume28
Issue number5
DOIs
StatePublished - Oct 2013
Externally publishedYes

Keywords

  • ARFIMA models
  • Exact variance matrix
  • Forecasting
  • Impulse response functions
  • Long-memory time series
  • R
  • Whittle estimation

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