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garchx (version 1.5)

Flexible and Robust GARCH-X Modelling

Description

Flexible and robust estimation and inference of generalised autoregressive conditional heteroscedasticity (GARCH) models with covariates ('X') based on the results by Francq and Thieu (2018) . Coefficients can straightforwardly be set to zero by omission, and quasi maximum likelihood methods ensure estimates are generally consistent and inference valid, even when the standardised innovations are non-normal and/or dependent over time, see for an overview of the package.

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Version

Install

install.packages('garchx')

Monthly Downloads

312

Version

1.5

License

GPL (>= 2)

Maintainer

Genaro Sucarrat

Last Published

September 13th, 2022

Functions in garchx (1.5)

ttest0

T-tests and Wald-tests under nullity
garchxSim

Simulate from a GARCH-X model
garchxObjective

Auxiliary functions
coef.garchx

Extraction functions for 'garchx' objects
garchx

Estimate a GARCH-X model
garchx-package

Flexible and Robust GARCH-X Modelling
rmnorm

Random number generation from the multivariate normal distribution
refit

Refit a model to new data
garchxAvar

Asymptotic Coefficient Covariance
gdiff

Difference a vector or a matrix, with special treatment of zoo objects
glag

Lag a vector or a matrix, with special treatment of zoo objects