Don't know whether R knows that, but gretl does in its 1.7 version for
sure. It has also direct link for export and import with R.
Best,
Jaromir Baxa
Dne Mon, 21 Apr 2008 21:00:15 +0200 Radovan FiĊĦer <
rfiser@...>
napsal/-a:
> Hello to all R users,
>
> up to my knowledge, neither garch(tseries) nor garchFit(fGarch)
> support including external regressors in variance equation regression
> (not mean), which, for example, arima(stats) can do by setting xreg.
> Is there a package or any other way that can do this?
>
> To be precise, I want to estimate a variance equation that goes like
> this:
> h_t = arch_t + garch_t + dummy1_t + dummy2_t + v_t.
>
> Any advise appreciated!
>
> Radovan Fiser
>
> --
> Institute of Economic Studies
> Prague
>
http://ies.fsv.cuni.cz/> radekf.net
> bikeri.cz - kostelnibriza.cz - fiserovi.cz - hcsgang.com
>
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