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subscripting arrays [message #46258]

Sun, 13 November 2005 20:47

Benjamin Hornberger is currently offline

Benjamin Hornberger
Messages: 258
Registered: March 2004

Senior Member

Hi all,

this is probably simple, but I can't figure it out right now:

I want to extract an element from a 2d array, and I have the 2d
subscripts of that element available as a 2-element vector.

IDL> a = dist(300)
IDL> b = [30, 50]
IDL> print, a[b]
30.0000 50.0000

Not what I want. What I want is

IDL> print, a[b[0], b[1]]
58.3095

Is there a more elegant way than splitting b up?

Thanks,
Benjamin

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		subscripting arrays By: Benjamin Hornberger on Sun, 13 November 2005 20:47
		Re: subscripting arrays By: Chris Lee on Tue, 22 November 2005 01:36

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