Re: Re: ListInterpolation
- To: mathgroup at smc.vnet.net
- Subject: [mg58383] Re: [mg58369] Re: ListInterpolation
- From: Stéphane Fay <steph.fay at gmail.com>
- Date: Thu, 30 Jun 2005 04:37:19 -0400 (EDT)
- References: <d9r4tv$55q$1@smc.vnet.net> <200506290157.VAA15270@smc.vnet.net>
- Reply-to: Stéphane Fay <steph.fay at gmail.com>
- Sender: owner-wri-mathgroup at wolfram.com
Thank you for your answer, but when I try
res = ListInterpolation[
Transpose[{{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10 , 11 , 12}}],
{{1, 1.3, 2, 5}, {0, 1.5, 2}}];
I get
res[1, 0.5] = 1.
whereas for me the correct answer would be res[1, 0.5] = 5/3
since {1, 1.3, 2, 5} is the x coordinate of the data table {{1, 2, 3,
4}, {5, 6, 7, 8}, {9, 10 , 11 , 12}} and {0, 1.5, 2} the y
coordinates. Where does I make a mistake?
On 6/29/05, Peter Pein <petsie at dordos.net> wrote:
> St=E9phane Fay schrieb:
> > Dear everyone,
> >
> > I have a problem with the ListInterpolation instruction. I would like
> > to specify some explicit lists of positions for grid lines like this:
> >
> > res == ListInterpolation[{{1, 2, 3, 4}, {5, 6, 7, 8}}, {{1, 1.3, 2. 5,
> > 5}, {0.5, 1.3}}]
> >
> > But it does not work: when I try to calculate res[2, 1.1], I get
> > ListInterpolation[{{1, 2, 3, 4}, {5, 6, 7, 8}}, {{1, 1.3, 2.5, 5},
> > {0.5, 1.3}}][2, 1.1]
> >
> > I thank you in advance for your help.
> >
> > Yours sincerely
> >
> > Stephane Fay
> > Paris Observatory
> > France
> >
> Your input is not in proper format (and use "=" for assignments, not "=="):
>
> In[1]:= res = ListInterpolation[
> Transpose[{{1, 2, 3, 4}, {5, 6, 7, 8}}],
> {{1, 1.3, 2.5, 5}, {0.5, 1.3}}];
> From In[1]:=
> ListInterpolation::inhr:
> Requested order is too high; order has been reduced to {3, 1}. More...
>
> In[2]:= res[2, 1.1]
> Out[2]=
> 6.031081081081081
> --
> Peter Pein
> Berlin
>
>
- References:
- Re: ListInterpolation
- From: Peter Pein <petsie@dordos.net>
- Re: ListInterpolation