Displaying 20 results from an estimated 1000 matches similar to: "GARCH, installing tserise package"
2011 May 10
0
DCC-GARCH model and AR(1)-GARCH(1, 1) regression model - help needed..
Hello,
I have a rather complex problem... I will have to explain everything in
detail because I cannot solve it by myself...i just ran out of ideas. So
here is what I want to do:
I take quotes of two indices - S&P500 and DJ. And my first aim is to
estimate coefficients of the DCC-GARCH model for them. This is how I do it:
library(tseries)
p1 = get.hist.quote(instrument =
2006 Feb 18
0
question about GARCH - newbie question
hello,
I have been looking at multiple websites on GARCH and
have looked at some books and I am getting
contradictory models given for GARCH.
If I use the GARCH function to fit my model, I am
confused as to what the coefficents given refer to.
For example if I fit a GARCH(1,1) model, GARCH will
give me three coefficients Ao, Ai, and Bi
I know Ao refers to the constant of the model.
But what
2005 Jun 03
0
RE: GARCH (1 , 1), Hill estimator of alpha, Pareto estimator]
Ukech U. Kidi wrote:
> dax<- diff(log(DAX_CAC$DAX[1:1865]))
> m1<- garch(dax)
> Error: couldn't find function "garch"
> m1<- garch(dax[1:1865])
> Error: couldn't find function "garch"
> m1<- garch(dax[1:1865])
I am sorry, but I forgot to change the addres to r-help in the reply.
Well, I am not sure, wheere do you want to get
2011 May 12
2
DCC-GARCH model and AR(1)-GARCH(1,1) regression model
Hello,
I have a rather complex problem... I will have to explain everything in
detail because I cannot solve it by myself...i just ran out of ideas. So
here is what I want to do:
I take quotes of two indices - S&P500 and DJ. And my first aim is to
estimate coefficients of the DCC-GARCH model for them. This is how I do it:
library(tseries)
p1 = get.hist.quote(instrument =
2013 Apr 08
0
Maximum likelihood estimation of ARMA(1,1)-GARCH(1,1)
Hello
Following some standard textbooks on ARMA(1,1)-GARCH(1,1) (e.g. Ruey
Tsay's Analysis of Financial Time Series), I try to write an R program
to estimate the key parameters of an ARMA(1,1)-GARCH(1,1) model for
Intel's stock returns. For some random reason, I cannot decipher what
is wrong with my R program. The R package fGarch already gives me the
answer, but my customized function
2011 Nov 24
1
CAPM-GARCH - Regression analysis with heteroskedasticity
Hey Guys,
i want to do a CAPM-GARCH model. I didn?t find anything posted online.
(If there is something - shame on me - i didn?t find it.)
My Problem: What is the difference if I let the residuals ?e? follow a
garch process ?
How do I do my regression analysis now? I began reading about regression
analyis with heteroscedasticity, but didn?t get it.
So i started programming.
First
2005 Jun 03
1
GARCH (1 , 1), Hill estimator of alpha, Pareto estimator
Dear R users,
Could you please help me out. I am in trouble as I am unable to model graphs
to explain the GARCH (1 , 1) model, the Hill estimator (of alpha), and the
Pareto estimator.
I just got introduce to R. I am working on a paper which must be worked from
R.
You look at the difficulty I had from the text below.
[1] "DAX" "DAX_CAC" "DAX_CAC40"
2006 May 08
3
GARCH SIMULATION
Hi All,
I,m trying to do a GARCH simulation in R 2.3.0 release
in Windows XP. I've seen garchsim function but that is
for garch (1,1) and ?garch gives an example for ARCH
simulation. Can anyone help me how can i extend the
help shown in ?garch to GARCH simulation? Please help
me in this regard.
Thanks,
Sumanta Basak.
2012 May 02
1
calibration of Garch models to historical data
I have done the usual estimation of GARCH models, applied to my historical
dataset (commodities futures) with a maximum likelihood function and
selected the best model on the basis of information criteria such as Akaike
and Bayes.
Can somebody explain me please the calibration scheme for a GARCH model?
I was not able to find a paper, dealing with exactly this algorithm for my
case. I only
2005 Nov 21
2
garch function in R
I'm using R 2.1.1 and just successfully installed packages tseries, fseries.
I try to run example
http://www.maths.lth.se/help/R/.R/library/tseries/html/garch.html
But it shows
> x.arch <- garch(x, order = c(0,2)) # Fit ARCH(2)
Error: couldn't find function "garch"
Then I run command
> help.search("garch")
it shows the R information.
2007 May 03
0
Problem with GARCH models in R compared to S-PLUS
Hi R,
I have three queries regarding handling GARCH functions in R. Below I
document the same:
Unlike S-Plus, R doesn't handle Multivariate GARCH models.
R has a package for BEKK GARCH model but not for DVEC GARCH models.
The GARCH function in S-PLUS has the capability of fixing some model
parameters at certain values to evaluate the fit of a particular model. But
the same optionality is
2012 Mar 11
0
specify GARCH model, using garchFit()
Hello,
I’ve fitted a Garch(2,1) model with function 'garchFit()' from the package
'fGarch':
> m1 <- garchFit(formula = ~garch(2,1),data = X,trace = F)
* See 'summary(m1)' OUTPUT BELOW *
PROBLEM: My alpha1 term is not significant and I would like to make a NEW
model, say m2, that does not contain alpha1, but I am not sure how to
specify this with the garchFit()
1999 Oct 25
1
GARCH models available
tseries_0.3-0 at CRAN now contains the following new features:
NelPlo Nelson-Plosser Macroeconomic Time Series
garch Fit GARCH Models to Time Series
get.hist.quote Download Historical Finance Data
jarque.bera.test Jarque-Bera Test
na.remove NA Handling Routines for Time Series
garch contains a GARCH estimation routine together
1999 Oct 25
1
GARCH models available
tseries_0.3-0 at CRAN now contains the following new features:
NelPlo Nelson-Plosser Macroeconomic Time Series
garch Fit GARCH Models to Time Series
get.hist.quote Download Historical Finance Data
jarque.bera.test Jarque-Bera Test
na.remove NA Handling Routines for Time Series
garch contains a GARCH estimation routine together
2009 Apr 29
1
arma model with garch errors
Dear R experts,
I am trying to estimate an ARMA 2,2 model with garch errors.
I used the following code on R 2.9.
#library
library(fGarch)
#data
data1<-ts(read.table("C:/Users/falcon/Desktop/Time
Series/exports/goods1.csv"), start=c(1992,1), frequency=12)
head(data1)
#garch
garchFit(formula.mean= ~arma(2,2),formula.var=~garch(1,1), data=data1)
but get this error:
>
2011 Jun 07
2
About DCC-garch model...
Hi, everyone,
I currently run into a problem about DCC-Garch model. I use the package
cc-garch and the function dcc.estimation. One of the output of this function
is DCC matrix, which shows conditional correlation matrix at every time
period you gives. However, I cannot figue out how the function calculate the
conditional correlation matrix at the first time period, since there is no
data to be
2009 Jun 15
2
GARCH:: False Convergence
Dear R users,
I am trying to use tseries' garch function in order to determine the
volatility of a return series generated by quantmod. Here is the code that I
am using:
> library(quantmod)
> getSymbols("AAPL")
convert daily closing prices into continuous log returns
> dret<-dailyReturn(AAPL,type='log')
check to see that the autocorrelations decay
>
2008 May 23
1
GARCH-like
I need to change the code of Garch to the FCGARCH (a non-linear
multi-regime GARCH).
I don't know nothing about R.
I'd like to know how can I get the code of the garch in order to change it
and make the fit for the FC-GARCH.
Any non-linear code will be helpfull because if doesn't help in the
programming it helps in getting familiar with R.
Thank you
Renato
--
PhD Student Renato
2007 Dec 10
1
Having trouble getting GARCH parameters (basic/newbie)
I'm having no luck getting GARCH parameter estimations. It seems simple
enough, but I don't know what I'm doing. I'm a newbie both at R and GARCH
models, so whatever is going wrong, it's probably very basic. Here's what I
do:
1. I first load the tseries package with:
library("tseries")
2. I then load the data with:
g <-
2009 Feb 16
0
odd GARCH(1,1) results
Hi everybody,
I'm trying to fit a Garch(1,1) process to the DAX returns. My data
consists of about 2300 10day-logreturns in chronologically descending
order (see attachment). But if I use the garch function I get a very
high alpha_1 and a quite low beta, which doesn't make that much sense. I
think I am missing something, but have no idea what it might be. I'd
appreciate it a lot