fGARCH-class {fGarch}R Documentation

Class "fGARCH"

Description

The class fGARCH represents a model of an heteroskedastic time series process.

Objects from the Class

Objects can be created by calls of the function garchFit. This object is a parameter estimate of an empirical GARCH process.

Slots

call:
Object of class "call": the call of the garch function.
formula:
Object of class "formula": a formula object specifying mean and variance equation.
method:
Object of class "character": a string denoting the optimization method, by default the returneds string is "Max Log-Likelihood Estimation".
data:
Object of class "list": a list with one entry named x, containing the data of the time series to be estimated, the same as given by the input argument series.
fit:
Object of class "list": a list with the results from the parameter estimation. The entries of the list depend on the selected algorithm, see below.
residuals:
Object of class "numeric": a numeric vector with the residual values.
fitted:
Object of class "numeric": a numeric vector with the fitted values.
h.t:
Object of class "numeric": a numeric vector with the conditional variances.
sigma.t:
Object of class "numeric": a numeric vector with the conditional standard deviations.
title:
Object of class "character": a title string.
description:
Object of class "character": a string with a brief description.

Methods

plot
signature(x = "fGARCH", y = "missing"): plots an object of class 'fGARCH'.
show
signature(object = "fGARCH"): prints an object of class 'fGARCH'.
summary
signature(object = "fGARCH"): summarizes an object of class 'fGARCH'.
predict
signature(object = "fGARCH"): forecasts mean and volatility from an object of class 'fGARCH'.
fitted
signature(object = "fGARCH"): extracts fitted values from an object of class 'fGARCH'.
residuals
signature(object = "fGARCH"): extracts fresiduals from an object of class 'fGARCH'.
volatility
signature(object = "fGARCH"): extracts conditional volatility from an object of class 'fGARCH'.
coef
signature(object = "fGARCH"): extracts fitted coefficients from an object of class 'fGARCH'.
formula
signature(x = "fGARCH"): extracts formula expression from an object of class 'fGARCH'.

Author(s)

Diethelm Wuertz and Rmetrics Core Team.


[Package fGarch version 2110.80 Index]