GENERALIZED LEAST SQUARES ESTIMATION OF ARMA MODELS

Autor: E. J. Hannan, L. Kavalieris, M. O. Salau
Rok vydání: 2003
Předmět:
Zdroj: Journal of Time Series Analysis. 24:165-172
ISSN: 0143-9782
DOI: 10.1111/1467-9892.00301
Popis: Two multistage methods for estimating scalar ARMA models are investigated. Both estimate innovations using an autoregression; these are used to obtain initial ARMA parameter estimates by regression and finally the initial estimates are refined by generalized least squares or nonlinear optimization to achieve efficiency. We provide a proof of the generalized least squares procedure.
Databáze: OpenAIRE