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Re: Array indexing problem [message #37865 is a reply to message #37858]

Wed, 28 January 2004 14:23

Michael Wallace
Messages: 409
Registered: December 2003

Senior Member

>> Is there any existing code that will catch the below IDL simple
>> example? Input a and b must be an array.
>>
>>
>> Input is an array:
>> IDL> b=[4]
>> IDL> a=[0,1,2]
>> IDL> print,a[b]
>> 2
>> This should give me an error.
>
>
> Alas, you have run into a little known, but enormously
> appreciated, little feature of IDL. (I'm sure it is
> explained in the manuals somewhere. :-)

Could you elaborate on the "enormously appreciated" part of your
statement? Maybe I'm not thinking in the "IDL Way," but I would not
have expected the result IDL gives. It may very well be explained in
the manuals, but why is such a "feature" "enormously appreciated?"

Mike

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[Message index]

		Re: Array indexing problem By: kashyap on Thu, 29 January 2004 15:21
		Re: Array indexing problem By: David Fanning on Thu, 29 January 2004 09:58
		Re: Array indexing problem By: Liam Gumley on Thu, 29 January 2004 09:43
		Re: Array indexing problem By: roberson_1 on Thu, 29 January 2004 09:03
		Re: Array indexing problem By: hunter on Wed, 28 January 2004 13:43
		Re: Array indexing problem By: Mark Hadfield on Wed, 28 January 2004 16:55
		Re: Array indexing problem By: David Fanning on Wed, 28 January 2004 14:40
		Re: Array indexing problem By: Paul Van Delst[1] on Wed, 28 January 2004 14:28
		Re: Array indexing problem By: Michael Wallace on Wed, 28 January 2004 14:23
		Re: Array indexing problem By: Liam Gumley on Wed, 28 January 2004 14:11
		Re: Array indexing problem By: David Fanning on Wed, 28 January 2004 13:34

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