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Re: IDL array subscripting issue [message #90227 is a reply to message #90225]

Thu, 12 February 2015 09:29

Fabzi
Messages: 305
Registered: July 2010

Senior Member

On 12.02.2015 18:22, David B wrote:
> ===============================
>
> IDL> a = INDGEN(10)
> IDL> b = [0,10]
> IDL> print, a[b]
> 0 9
> IDL> b = [0,9]
> IDL> print, a[b]
> 0 9
>
> ===============================
> Why?!

This is a strange but documented feature of IDL:

http://www.exelisvis.de/docs/Using_Arrays_as_Array_Su.html

See "Array Subscripts and Clipping".

Depending on what you want, this is a feature of a bug. I learned to
like it as a feature, personally.

Cheers,

Fabien

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[Message index]

		IDL array subscripting issue By: David B on Thu, 12 February 2015 09:22
		Re: IDL array subscripting issue By: David B on Thu, 12 February 2015 09:23
		Re: IDL array subscripting issue By: Fabzi on Thu, 12 February 2015 09:29
		Re: IDL array subscripting issue By: Paul Van Delst[1] on Thu, 12 February 2015 10:26
		Re: IDL array subscripting issue By: Fabzi on Thu, 12 February 2015 10:36
		Re: IDL array subscripting issue By: David Fanning on Thu, 12 February 2015 10:05
		Re: IDL array subscripting issue By: David B on Fri, 13 February 2015 01:32

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