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MathGroup Archive 2007

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Re: Saving Interpolated Function

  • To: mathgroup at
  • Subject: [mg81015] Re: Saving Interpolated Function
  • From: sashap <pavlyk at>
  • Date: Sat, 8 Sep 2007 03:47:30 -0400 (EDT)
  • References: <fbqpja$696$>

Hi Phil,

You need to use Import/Export.

Using v 6:

(* construct an interpolating function *)
In[1]:= if =
  y /. NDSolve[ {y''[t] - y[t] t^2 == 0, y[0] == 0, y'[0] == 1},
     y, {t, 0, 10}][[1]];

In[2]:= Head[if]

Out[2]= InterpolatingFunction

In[3]:= Export[
 ToFileName[{$HomeDirectory, "Desktop"}, "interfunc.m"], if]

Out[3]= C:\Documents and Settings\....\Desktop\interfunc.m

In[4]:= if2 =
  Import[ToFileName[{$HomeDirectory, "Desktop"}, "interfunc.m"]];

In[5]:= if2 === if

Out[5]= True

Oleksandr Pavlyk
Wolfram Research

On Sep 7, 1:03 am, "lede... at"
<lede... at> wrote:
> I am doing some numerical analysis leading to an interpolated function
> that I will need later.
> These calculations take many minutes, and I want to beable to save the
> interpolated function--so it does not have to be regenerated every
> time I come back to the problem.
> How can I do this.?
> Thanks
> Phil

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