Brian is right. You should only be using one of the packages. My
personal preference in the fGarch package, if only because I'm a big fan
of the Rmetrics suite. You should only need the "garchFit" and
"garchSpec" functions (I may be wrong about that last one- it's been a
while since I used the package).

On Fri, 2010-02-12 at 12:02 -0800, Rich Ghazarian wrote:

> I'm trying to plot a garch fit using quantmod by doing something like this
>  mm <- specifyModel(garchFit(formula = ~ garch(1, 1), data = ngrt1))
> 
> and obviously it's not working
> 
> My question is what is: What is the quickest way to fit and plot a
> GARCH series that preserves its date and time structure.  If I just do
> something like
> test<-(fitted(garch(ngrt1, order = c(1,1),fitted.values=TRUE)))
> then I lose the date index.
> 
> Thank you
> 
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