fitted.arfima {arfima}

Extract Model Fitted Values

Description

Extract fitted values from an arfima object.

Usage

## S3 method for class 'arfima'
fitted(object, ...)

Arguments

object

A arfima object.

...

Optional parameters. Currently not used.

Value

A list of vectors of fitted values, one for each mode.

Author(s)

JQ (Justin) Veenstra

References

Veenstra, J.Q. Persistence and Antipersistence: Theory and Software (PhD Thesis)

See Also

arfima, resid.arfima

Examples

set.seed(8564)
sim <- arfima.sim(1000, model = list(phi = c(0.2, 0.1), dfrac = 0.4, theta = 0.9))
fit <- arfima(sim, order = c(2, 0, 1), back=TRUE)

fit

resid <- resid(fit)
par(mfrow = c(1, 3))
fitted <- fitted(fit)
plot(fitted[[1]], resid[[1]])
plot(fitted[[2]], resid[[2]])
plot(fitted[[3]], resid[[3]])
par(mfrow = c(1, 1))