RE: Re: 2D interpolation
- To: mathgroup at smc.vnet.net
- Subject: [mg72990] RE: Re: 2D interpolation
- From: Oliver Ruebenkoenig <ruebenko at uni-freiburg.de>
- Date: Sat, 27 Jan 2007 06:49:50 -0500 (EST)
- Organization: InterNetNews at News.BelWue.DE (Stuttgart, Germany)
- References: <200701251211.HAA21017@smc.vnet.net> <epcnsb$88l$1@smc.vnet.net>
Dear Fabrice,
i am not sure i understand your problem 100%. Also, you send a
_small_ data set? Before and after you take the log? Perhaps precision is
in your way.
>
> If I read the help for Interpolation[data] it is written that could work
> with multidemensional data {xi, yi, ... fi}. But I can't find
> A way to make it work...
Multidimensional does not say anything about structured or not.
As others have stated before: Interpolation does not work with
unstructured data. The data you mentioned seems to be unstructured. Check
what the Log does to your data. Is it really structured?
>
> Someone proposed me to use
> http://www.imtek.uni-freiburg.de/simulation/mathematica/IMSweb/imsTOC/Di
> fferential%20Equation%20Systems/Utilities/InterpolationDocu.html
> It seems to do what I want, but... First it means every people I worked
> with will have to instal it,
I hope you work with millions of people! WOW IMS on every computer. I'd
love that! ;-)
Well, it is Open Source and costs you a download of about 8MB. Do you
think it is too complicated to install?
> and second I tried to use it, but I failed
What does the error message say?
Another possibility is to convert your unstructured data to structured
data. Again, you need IMS to do that. You can have a look at:
http://www.imtek.uni-freiburg.de/simulation/mathematica/IMSweb/imsTOC/Computational%20Geometry/Meshes/MesherUtilitiesDocu.html
Hope to help,
Oliver
Oliver Ruebenkoenig, <ruebenko at uni-freiburg.de>
Phone: ++49 +761 203 7388
- References:
- Re: 2D interpolation
- From: Bill Rowe <readnewsciv@sbcglobal.net>
- Re: 2D interpolation