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Re: How to apply a function to an array? [message #44097 is a reply to message #43998]

Fri, 13 May 2005 02:05

Antonio Santiago
Messages: 201
Registered: February 2004

Senior Member

W. Eremeev wrote:
> Suppose, I have a function with one scalar argument, returning a scalar
> and an array of values.
> I want to get another array with the same dimensions, containing
> results of application of my function to the values in the first array.
>
> R (www.r-project.org) has such functions (apply, lapply, sapply).
> They take vectors or matrices and functions as arguments and return
> arrays.
>
> What about IDL?
>
R is a functional programming language whereas IDL not. This means the
working philosophy is pretty diferent.

Sorry :(, but I dont know if there is a function or procedure in IDL
that executes an specified function over a set of data. Perhaps you must
think in terms of loops.

--
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Antonio Santiago Pï¿½rez
( email: santiago<<at>>grahi.upc.edu )
( www: http://www.grahi.upc.edu/santiago )
( www: http://asantiago.blogsite.org )
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GRAHI - Grup de Recerca Aplicada en Hidrometeorologia
Universitat Politï¿½cnica de Catalunya
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[Message index]

		How to apply a function to an array? By: W. Eremeev on Fri, 13 May 2005 01:37
		Re: How to apply a function to an array? By: Timm Weitkamp on Fri, 13 May 2005 02:25
		Re: How to apply a function to an array? By: Antonio Santiago on Fri, 13 May 2005 02:05

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