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Re: defining functions on-the-fly [message #25126]

Tue, 22 May 2001 21:42

marc schellens[1]
Messages: 183
Registered: January 2000

Senior Member

Marshall Perrin wrote:
>
> I would like to be able to define some functions on-the-fly in IDL.
> In other words, my program does some stuff, and computes that the desired
> function is (some arbitrary function, not necessarily a polynomial).
> I would then like to define the equivalent of
> FUNCTION myfunction, x,y
> return, <my arbitrary expression in (x,y)>
> END
> and then be able to call myfunction(x,y).
>
> Is there any easier way to do this than actually writing out a
> myfunction.pro file to disk and compiling that? That way would certainly
> work, but it strikes me as inelegant... At first I thought I could do this
> with the EXECUTE statement, but you can't define functions using that.
>
> - Marshall

try .comp:

IDL> .comp [ENTER]
- function f
- return,42
- end
% Compiled module: F.
IDL> print,f()
42
IDL>

cheers,
:-) marc

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[Message index]

		Re: defining functions on-the-fly By: marc schellens[1] on Tue, 22 May 2001 21:42
		Re: defining functions on-the-fly By: Craig Markwardt on Wed, 23 May 2001 14:38
		Re: defining functions on-the-fly By: mperrin+news on Wed, 23 May 2001 14:12

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