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Re: IDL Astronomy Library: Some procedures doesn't work? [message #82693 is a reply to message #82514]

Tue, 08 January 2013 06:18

Nothingness
Messages: 2
Registered: December 2012

Junior Member

On Wednesday, December 19, 2012 10:03:29 PM UTC+8, David Fanning wrote:
> Nothingness writes:
>
>
>
>> I have IDL and IDL Astronomy Library installed on server of my
>
>> institute. Some procedures can be executed, like hastrom, ad2xy,
>
>> correl_optimize, etc. However some others can't, like convolve,
>
>> psf_gaussian, etc. Even though their locations are in the IDL paths
>
>> and some of them (convolve and correl_optimize) are in the same
>
>> directory. And they have the same permissions.
>
>>
>
>> Do you have any idea how to fix this?
>
>
>
> Yes, call the procedures as procedures:
>
>
>
> IDL> Junk
>
>
>
> And call the functions as functions:
>
>
>
> IDL> var = Junker()
>
>
>
> Functions in IDL always return a value. You have to
>
> provide a receptacle (variable) for the value of the
>
> function to be returned in.
>
>
>
> Cheers,
>
>
>
> David
>
>
>
> --
>
> David Fanning, Ph.D.
>
> Fanning Software Consulting, Inc.
>
> Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
>
> Sepore ma de ni thue. ("Perhaps thou speakest truth.")

Hi David,
Thanks for the tips. The function psf_gaussian works properly when I input variables in, e.g. psf = psf_gaussian([12,23,19.2],npixel=50).
D

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[Message index]

		Re: IDL Astronomy Library: Some procedures doesn't work? By: wlandsman on Wed, 19 December 2012 10:05
		Re: IDL Astronomy Library: Some procedures doesn't work? By: David Fanning on Wed, 19 December 2012 06:03
		Re: IDL Astronomy Library: Some procedures doesn't work? By: Nothingness on Tue, 08 January 2013 06:18
		Re: IDL Astronomy Library: Some procedures doesn't work? By: Mark Piper on Thu, 20 December 2012 12:10

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