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Array concatenation [message #48962]

Wed, 07 June 2006 03:41

maye
Messages: 29
Registered: June 2006

Junior Member

Hi folks,
I was searching for an effective way to do this, but can't find anybody
writing about what (as usual) seems to be an obvious problem/task to
me. :)
I don't know how many elements I will collect while scanning a bunch of
images, so I want to use array concatenation to collect the values like
this:
means = [means, currMean]
But for this to compile/run properly, I need mean to exist before.
If I do a
means = 0.
before the loop, I will always have a zero-element in the beginning
that I don't want at plotting time. Of course I could remove it with
means = means[1:*]
but not only does this waste resources, it also becomes cumbersome if I
collect 20 different data values, for that I ALL have to remove the
first value?
Surely there must be a better way?
Please help me to program IDL efficiently! :)
Best regards,
Michael

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[Message index]

		Array concatenation By: maye on Wed, 07 June 2006 03:41
		Re: Array concatenation By: Vince Hradil on Tue, 17 July 2007 09:25
		Re: Array concatenation By: Julio[1] on Tue, 17 July 2007 06:40
		Re: Array concatenation By: Conor on Tue, 17 July 2007 05:11
		Re: Array concatenation By: Paolo Grigis on Tue, 17 July 2007 00:28
		Re: Array concatenation By: Peter Clinch on Tue, 17 July 2007 00:24
		Re: array concatenation By: Wox on Thu, 31 January 2008 00:43
		Re: array concatenation By: Spon on Wed, 30 January 2008 08:38
		Re: array concatenation By: Allan Whiteford on Wed, 30 January 2008 08:21
		Re: array concatenation By: Karl[1] on Fri, 03 October 2008 18:11
		Re: array concatenation By: David Fanning on Fri, 03 October 2008 14:20
		Re: array concatenation By: lecacheux.alain on Fri, 03 October 2008 14:16
		Re: array concatenation By: Joost Aan de Brugh on Fri, 03 October 2008 08:15
		Re: array concatenation By: lecacheux.alain on Fri, 03 October 2008 04:19

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