In this paper, we consider a method (splitting) for calculating the autocovariances of fractional integrated processes (ARFIMA) and generalized integrated processes (GARMA). The splitting method does not require any restriction on the autoregressive roots, and allows fast calculation of the autocovariances of these processes.
A note on calculating autocovariances of long-memory processes
CAPORIN, MASSIMILIANO
2002
Abstract
In this paper, we consider a method (splitting) for calculating the autocovariances of fractional integrated processes (ARFIMA) and generalized integrated processes (GARMA). The splitting method does not require any restriction on the autoregressive roots, and allows fast calculation of the autocovariances of these processes.
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