Displaying 4 results from an estimated 4 matches for "garch11".
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garch1
2009 Jun 23
1
Forecast GARCH model
...the residuals of my time serie (X).
X is an ARMA(1,1) process.
Now I want to do a n-step forecast for X, knowing these processes. How can I
do this?
I know that there's a command:
predict() for ARIMA processes and so on, but what about GARCH?
I've got:
arma=arima(x, order=c(1,0,1))
(...)
garch11<-garch(residuals(x),order = c(1, 1))
summary(garch11)
How can I forecast the conditional variance and my serie X?
Many thanks
Ana
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2017 Jun 07
0
Getting forecast values using DCC GARCH fit
...x vibration_x Speed
1 2017-05-16 17:53:00 -0.132 421.4189
2 2017-05-16 17:54:00 -0.296 1296.8882
3 2017-05-16 17:55:00 -0.572 0.0000
4 2017-05-16 17:56:00 -0.736 1254.2695
5 2017-05-16 17:57:00 0.000 0.0000
6 2017-05-16 17:58:00 0.000 0.0000
> garch11.spec = ugarchspec(mean.model = list(armaOrder = c(1,1)),
variance.model = list(garchOrder = c(1,1),
model = "sGARCH"),
distribution.model = "norm")
> dcc.garch11.spec = dccspec(uspec = multispec( replicate(2...
2017 Jun 07
0
Getting forecast values using DCC GARCH fit
...x vibration_x Speed
1 2017-05-16 17:53:00 -0.132 421.4189
2 2017-05-16 17:54:00 -0.296 1296.8882
3 2017-05-16 17:55:00 -0.572 0.0000
4 2017-05-16 17:56:00 -0.736 1254.2695
5 2017-05-16 17:57:00 0.000 0.0000
6 2017-05-16 17:58:00 0.000 0.0000
> garch11.spec = ugarchspec(mean.model = list(armaOrder = c(1,1)),
variance.model = list(garchOrder = c(1,1),
model = "sGARCH"),
distribution.model = "norm")
> dcc.garch11.spec = dccspec(uspec = multispec( replicate(2...
2011 Feb 15
1
Estimation of an GARCH model with conditional skewness and kurtosis
Hello,
I'm quite new to R but tried to learn as much as possible in the last
few months.
My problem is that I would like to estimate the model of Leon et al. (2005).
I have shortly summarised the most important equations in the following
pdf file:
http://hannes.fedorapeople.org/leon2005.pdf
My main question is now how could I introduce these two additional terms
into the Likelihood