Re: Compiling
- To: mathgroup@smc.vnet.net
- Subject: [mg11254] Re: Compiling
- From: Paul Abbott <paul@physics.uwa.edu.au>
- Date: Wed, 4 Mar 1998 01:39:15 -0500
- Organization: University of Western Australia
- References: <6d0cod$2o6@smc.vnet.net>
JOHN C ERB wrote:
> I am trying to compile an interpolation routine which is used thousands
> of times in my program
>
> alaway is a 2D table of data {{x1,y1,data1},{x2,y2,data2} ... }
>
> h is an array of data; e.g. h = {{1,2},{2,3,} ... }, representing x's &
> y's for which I want data's; this array has 1000's of entries
>
> I can use
>
> Map[Interpolation[alaway][#[[1]],#[[2]]]&,h]
>
> and get an answer, but it takes several minutes to complete.
Using
Apply[Interpolation[alaway],h,1]
is about 10 times faster.
Cheers,
Paul
____________________________________________________________________
Paul Abbott Phone: +61-8-9380-2734
Department of Physics Fax: +61-8-9380-1014
The University of Western Australia Nedlands WA 6907
mailto:paul@physics.uwa.edu.au AUSTRALIA
http://www.pd.uwa.edu.au/~paul
God IS a weakly left-handed dice player
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