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MathGroup Archive 2000

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Re: Keeping Interpolations

  • To: mathgroup at
  • Subject: [mg22868] Re: Keeping Interpolations
  • From: "Allan Hayes" <hay at>
  • Date: Sun, 2 Apr 2000 15:33:37 -0400 (EDT)
  • References: <8c5luq$>
  • Sender: owner-wri-mathgroup at


data = Table[{x, Sin[x]}, {x, 0, 7, .2}];

fn = Interpolation[data]

        InterpolatingFunction[{{0., 7.}}, "<>"]

Save["myfn", fn]



        InterpolatingFunction[{{0., 7.}}, "<>"]

Plot[%[t], {t, 0, 7}]

Allan Hayes
Mathematica Training and Consulting
Leicester UK
hay at
Voice: +44 (0)116 271 4198
Fax: +44 (0)870 164 0565

<Matt.Johnson at> wrote in message
news:8c5luq$40d at
> Hi-
> I wrote a routine using Interpolation to interpolate over a 2-d grid.  The
> set is large and the processing of the data to get it into the
> routine is time consuming.  I am wondering if I can somehow "save" the
> interpolation function so I don't have to read the data and perform the
> interpolation routine every time I want to use it.  In other words, I want
to be
> able to quit the kernel and restart and be able to use the interpolation
> without re-loading all of the data to create it.
> Thanks for any help-
> Matt Johnson

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