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## Re: Output function

 From: c. Subject: Re: Output function Date: Tue, 27 Sep 2011 16:27:03 +0200

```On 27 Sep 2011, at 16:09, Juan Pablo Carbajal wrote:

> Hi all,
>
> I want to generate a function that retruns a function. Example
> t=linspace(0,1,100);
> y = sin(2*pi*t);
> func = data2fun(t,y)
>
> where data2func looks like
>
> function f = data2fun (t, y)
> pp = spline (t, y);
> f = @(t_) ppval (pp, t_);
> end

why do you need a function to return the function?
I think this does what you want:

fun_gen = @(x, t, y) ppval (spline (t, y), x);
fun = @(x) fun_gen(x, t, y);

but maybe the following is more efficient as it does not recompute the
polynomial every time:

fun_gen = @(pp, y) ppval (pp, x);
pp = spline (t, y);
fun = @(x) fun_gen(pp, y);

> Is there a better way to do it?
>
> Thanks
>
> --
> M. Sc. Juan Pablo Carbajal
> -----
> PhD Student
> University of Zürich
> http://ailab.ifi.uzh.ch/carbajal/
> _______________________________________________
> Help-octave mailing list
> address@hidden
> https://mailman.cae.wisc.edu/listinfo/help-octave

```

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