Re: please solve
- To: mathgroup at smc.vnet.net
- Subject: [mg52962] Re: please solve
- From: Robert <robert_dot_paynter_ at _eng_.ox.ac.uk>
- Date: Sat, 18 Dec 2004 03:59:35 -0500 (EST)
- Organization: Oxford University, England
- References: <cprk0m$r87$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
rcmcll at yahoo.com wrote:
> Greetings:
>
> Could someone please solve this symbolically?
> This is just the ols formula for beta-hat but I need a symbolic
> solution for this special case.
>
> b = inv(x'x)x'y
>
> where
>
> x = 1 t t^2
> 1 t t^2
> 1 t t^2
>
>
> and simplify simplify simplify!!
>
> Thanks,
>
> Bob
>
Bob,
I suggest you look at the formulations for
Savitsky-Golay filtering, they should get you there
in a nice systematic way, ie you will be able to
extend if you wish. Perhaps searching for links
more usually associated with signal & image
processing might help.
Regards
Bob
I really prefer my full name:
Robert