Re: mean filter, another implementation

[Søren Hauberg]

Hi,
Thanks for the info, I'll try it.
Do you know why this should give me a speed-up?

/Søren

Dmitri A. Sergatskov wrote:
> Søren Hauberg wrote:
>
> > tic; mymeanfilter(data,n); toc   ans = 2.9098
>
>
> I looked at .cc code -- you can probably speed it up by another 10%
> if you replace
>
> out(i) = sum/(double)n;
>
> with
>
> out(i) = w*sum;
>
> where
>
> const double w = 1.0/n;
>
> declared somewhere outside the loop.
>
> Regards,
>
> Dmitri.



-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
Subscription information:  http://www.octave.org/archive.html
-------------------------------------------------------------