Displaying 2 results from an estimated 2 matches for "constant_term1".
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constant_term2
2010 Aug 23
1
Fitting a GARCH model in R
Hi,
I want to fit a mean and variance model jointly.
For example I might want to fit an AR(2)-GARCH(1,1) model i.e.
r_t = constant_term1 + b*r_t-1 + c*r_t-2 + a_t
where a_t = sigma_t*epsilon_t
where sigma^2_t = constant_term2 + p*sigma^2_t-1 + q*a^2_t-1
i.e. R estimates a constant_term1, b, c, constant_term2, p, q
TIA
Aditya
2010 Aug 24
0
mlm for within subject design
...all.packages('sos', dep=T)
require(sos)
findFn('garch')
Regards
Liviu
On Mon, Aug 23, 2010 at 5:59 AM, Aditya Damani wrote:
> Hi,
>
> I want to fit a mean and variance model jointly.
>
> For example I might want to fit an AR(2)-GARCH(1,1) model i.e.
>
> r_t = constant_term1 + b*r_t-1 + c*r_t-2 + a_t
>
> where a_t = sigma_t*epsilon_t
>
> where sigma^2_t = constant_term2 + p*sigma^2_t-1 + q*a^2_t-1
>
> i.e. R estimates a constant_term1, b, c, constant_term2, p, q
>
> TIA
> Aditya
>
> ______________________________________________
> R-...