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The UCSD GARCH has been deprecated and will receive no further updates. Recent changes in MATLAB have broken many of the functions in the UCSD GARCH toolbox. Please use the MFE Toolbox which is the successor to the UCSD GARCH toolbox.

Legacy UCSD Toolbox

Before reporting bugs, please be sure you have the latest version, have downloaded the JPL toolbox, and ARE NOT using the ucsd_garch code from the JPL toolbox (and don't have that directory on your path)

The UCSD_Garch toolbox is a toolbox for Matlab that is useful in estimating and diagnosing univariate and multivariate heteroskedasticity in a Time Series models. The toolbox contains C-Mex files for the necessary loops in the univariate models. It is being released under a BSD style license. This means you can do pretty much what ever you want to including make money by selling it.

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The contents of the tool box:

2.0.14: Thanks for Mark Flood who pointed out an old bug in fattailed garch. Even more reason to move to the Oxford MFE Toolbox if possible.

2.0.13: Thanks for Mark Flood who pointed out an initialization bug in full_bekk_simulate.

2.0.12: Thanks to Dennis Turk who pointed out a bug in garchcore.m.

2.0.11: I have updated the mex files to work with more modern versions of MATLAB and removed the 5.3 binaries. I also replaced the missing tarchcore.m so that all functions in the toolbox run with or without using the binary files.

2.0.10: New versions of bsds, bsds_studentized, block_bootstrap and stationary_bootstrap that use the latest version of Hansen's SPA paper

2.0.9.: Quite a few bug/inconsistencies squashed thanks to Paul Koufalas and Lance Young

2.0.8: 2 bugs in dcc_mvgarch and one in egarch squashed

2.0.7: A few more bugs squashed thanks to Hansen Chen

2.0.6: Fixed a couple of typos in the skewt garch functions

2.0.5: Fixed a bug in vech()

2.0.4: There is a Matlab limitation on filename length of 31 characters on some versions. dagonal_bekk_mvgarch_likelihood was 1 character too long. It has been renamed diagonalBekkMVgarchLikelihood.

2.0.4: A bug was found in GARCHINMEAN. It is now fixed.

2.0.3: A huge bug was found in EGARCH. The original file was using variances, not std devs. This is now fixed. Not> I am unable to build the 5.3 binary as I am out of the country. For now, egarchcore.dll is only available for 6 and above.

Note: A few last minute bugs have been caught and the toolbox has been fixed(Again!). Please fell free to contact ma about any errors you get at kevin.sheppard@economics.ox.ac.uk.

UCSD_GARCH Toolbox. Version 2.0.10 21-APR-2007

Help and Documentation
ucsd_garch_demo - A demo of the garch toolbox

Main Univariate Mean Functions
armaxfilter - Univariate ARMAX estimation
mafilter - Univariate MA estimation
garchinmean - Univariate Garch-In-Mean estimation

Main Univariate GARCH Functions
garchpq_eviews - Univariare GARCH estimation without lower bound constraints; uses a penalty funcion(similar to eviews)
skewt_garch - Univariat GARCH estimation with skew-t residuals(Hansen)
tarch - Univariate TARCH and GJR estimation
garchpq - Univariate garch estimation with analytic derivatives
fattailed_garch - Univariate GARCH estimation with normal, Students T and Generalized Error Distribution
multi_garch - Univariate GARCH proceeedure to estimate a variety of GARCH specifications including AP GARCH
egarch - Exponential garch estimation with normal, Students T and Generalized Error Distribution

Main Multivariate Functions
cc_mvgarch - Estimates Bollerslev's Constant Correlation MV Garch
dcc_mvgarch - Estimates Engle and Sheppard's Dynamic Correlation MV Garch
o_mvgarch - Estimates Orthogonal or Factor MV Garch
scalar_bekk_mvgarch - Estimates Engle and Kroner's Scalar Bekk MV Garch
diagonal_bekk_mvgarch - Estimates Engle and Kroner's Diagonal Bekk MV Garch
full_bekk_mvgarch - Estimates Engle and Kroner's Bekk MV Garch
Idcc_mvgarch - Estimates Engle and Sheppards Integrated DCC MV Garch
scalar_bekk_T_mvgarch - Estimates Scalar Bekk MV Garch with Multivariate T disturbances
diagonal_bekk_T_mvgarch - Estimates Diagonal Bekk MV Garch with Multivariate T disturbances
full_bekk_T_mvgarch - Estimates Full Bekk MV Garch with Multivariate T disturbances

Univariate Mean and GARCH Simulation
armaxsimulate - Simulate an ARMAX model
garchsimulate - Sumilate Univariate GARCH series with normal innovations
fattailed_garchsimulate - Simulate Univariate GARCH series with Normal, Students T, or GED innovations
garcheviewssimulate - Simulate a GARCH process with (some)negative smoothing terms
garchinmeansimulate - Simulate a garch in mean model
egarchsimulate - Simulate an EGARCH model
multigarchSimulate - Simulate one of 8 different forms of GARCH
dcc_univariate_simulate - likelihood function called from dcc_univariate_simulate

Multivaraite GARCH Simulation
scalar_bekk_simulate - Simulate a scalar BEKK
diagonal_bekk_simulate - Simulate a diagonal BEKK
full_bekk_simulate - Simulate a full BEKK model
cc_mvgarch_simulate - Simulates Bollerslev's Constant Correlation MV Garch
dcc_simulate - Simulates Engle and Sheppard's Dynamic Correlation MV Garch

Univariate Mean Likelihood functions
garchinmeanlikelihood - Likelihood funtion for garch in mean estimation
maxfilter_likelihood - Likelihood function for MA estimation
armaxfilter_likelihood.m - likelihood function called from armaxfilter

Univariate GARCH Likelihood Functions
garcheviewslikelihood - likelihood function called from garchpq_eviews
skewt_garchlikelihood - likelihood function called from skewt_garch
skewtdis_LL - Log likelihod of a skew T distribution(helper)
garchlikelihood - likelihood function called from garchpq
fattailed_garchlikelihood - likelihood function called from fattailed_garch
multi_garchlikelihood - likelihood function called from multi_garch
egarchlikelihood - likelihood function called from egarch

Multivariate GARCH Likelihood Functions
cc_mvgarch_full_likelihood - likelihood function called from cc_mvgarch_full_likelihood
dcc_mvgarch_full_likelihood - likelihood function called from dcc_mvgarch_full_likelihood(correct)
dcc_mvgarch_likelihood - likelihood function called from dcc_mvgarch_likelihood(restricted)
diagonal_bekk_mvgarch_likelihood - likelihood function called from diagonal_bekk_mvgarch_likelihood
full_bekk_mvgarch_likelihood - likelihood function called from full_bekk_mvgarch_likelihood
scalar_bekk_mvgarch_likelihood - likelihood function called from scalar_bekk_mvgarch_likelihood
Idcc_mvgarch_full_likelihood - likelihood function called from IDCC_mvgarch_likelihood(correct)
Idcc_mvgarch_likelihood - likelihood function called from IDCC_mvgarch_likelihood(used in estimation)
scalar_bekk_T_est_likelihood - likelihood function called from scalar_T_bekk_mvgarch_likelihood(used in estimation)
diagonal_bekk_T_est_likelihood - likelihood function called from diagonal_T_bekk_mvgarch_likelihood(used in estimation)
full_bekk_T_est_likelihood - likelihood function called from full_T_bekk_mvgarch_likelihood(used in estimation)
scalar_bekk_T_likelihood - likelihood function called from scalar_T_bekk_mvgarch_likelihood(correct)
diagonal_bekk_T_likelihood - likelihood function called from diagonal_T_bekk_mvgarch_likelihood(correct)
full_bekk_T_likelihood - likelihood function called from full_T_bekk_mvgarch_likelihood(correct)

dcc_mvgarch_test - Engle and Sheppards test for dynamic correlation
lilliefors - Lillifors test for normality
ljq2 - Ljung-Box Q Test
lmtest1 - Lagrange Multiplier Test for autocorrelation
lmtest2 - Lagrange Multiplier Test for autocorrelation in the squarred residuals, an ARCH test
jarquebera - Jarque-Bera test for normality
shapirowilks - Shapiro-Wilks Test for normality
shapirofrancia - Shapiro-Francia Test for normality
kolmogorov - Kolmorogov-Shmirnov non-parametric test
berkowitz - The berkowitz transform of the KS test

Kernel Smoothing Routines
cosinus - Cosinus kernel
epanechnikov - Epanechnikov kernel
kern_dens_contour - Bivariate kernel density plot of a density contour
kern_dens_plot - Univariate kernel density plot
kern_dens_plot2 - 3d bivariate kernel density plot
normal - Normal kernel
quartic - Quaritc kernel
triangular - Triangular kernel
triweight - Triweight kernel
uniform - Uniform kernel

Bootstrap Routines
block_bootstrap - Block time series bootstrap
bsds - Bootstrap Data Snooper(White 2000, Hansen 2001) with upper, lower and consistent pvals
bsds_studentized - Bootstrap Data Snooper, using studentized bootstraps(Hansen 2001)
cont_bootstrap - Continuous Bootstrap for unit root data
stationary_bootstrap - Stationary Bootstrap(Politis and Romano(1994)) for time series

Univariate Density Functions
exppowcdf - Exponential Power Cumulative Density Function
exppowrnd - Exponential Power Random number generator
exppowpdf - Exponential Power Random Probability Density Function
gedcdf - Generalized Error Distribution Cumulative Density Function
gedinv - Generalized Error Distribution Inverse CDF
gedpdf - Generalized Error Distribution Probability Density Function
gedrnd - Generalized Error Distribution Random Number Generator
skewtdis_cdf - Skew-T Cumulative Density Function
skewtdis_inv - Skew-T Inverse CDF
skewtdis_pdf - Skew-T Probability Density Function
skewtdis_rnd - Skew-T Random Number Generator
stdtdis_cdf - Standardized T distribution(unit variance for all nu) Cumulative Density Function
stdtdis_pdf - Standardized T distribution(unit variance for all nu) Probability Density Function
stdtdis_rnd - Standardized T distribution(unit variance for all nu) Random Number Generator

Helper Functions
kscritical - Lookup table for KS critical values
cc_ivech - Specialized ivech for correlation matrices
fx.mat - a data set for foreign exchange return used by the demos
multi_garch_paramsetup - helper function for multi_garch
multi_garch_constraints - helper function for multi_garch
dcc_hessian - A modified version of HESSIAN for use in with CC_MVGARCH and DCC_MVGARCH
ivech - Creates a square lower triangular matrix, inverse of vech
vech - Takes teh half-vec of a square matrix, inverse of ivech
lagmatrix - Returns a matrix of lags of a dependant variable
pca - Performs Principal Componet Analysis

C-MEX functions(shoudl be compilable on using and C compiler, binaries for Win32 provided)
armaxcore - Core routine for ARMAX
egarchcore - Core routine for EGARCH
garchcore - Core routine for GARCH and FATTAILED_GARCH
garchgrad - Core routine for GARCH derivative estimation
garchinmeancore - Core routine for Garch in mean estimation
multigarchcore - Core routine for MULTIGARCH
ivech - C version of ivech
vech - C version of vech
maxcore - Core routing for MA estimation
recserarcore - C core for recserar
tarchcore - Core routine for TARCH estimation
multigarchcore - Core routine for MULTIGARCH

NOTE: This toolbox requires both matlab optimization toolbox and the excellent J.P.LeSage Library
available from www.spatial-econometrics.com

Copyright (c) 2001-2007 Kevin Sheppard All Rights Reserved.