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Re: Array concatenation [message #54859 is a reply to message #48962]

Tue, 17 July 2007 05:11

Conor
Messages: 138
Registered: February 2007

Senior Member

On Jul 17, 3:28 am, Paolo_Grigis <pgri...@astro.phys.ethz.ch> wrote:
> Julio wrote:
>> Hi there,
>
>> I have a problem with array concatenation. Suppose:
>
>> A = bytarr(10, 10)
>> B = bytar(10, 5)
>
>> C=[A,B]
>
>> Sure, it doesn't work, because dimensions don't agree. But, I need to
>> join A and B. One possibility is to change the dimensions of array B
>> and fill missing lines with zeros. Is it possible??
>
>> comments welcome,
>> Best,
>> Julio
>
> Just use C=[[A],[B]]
>
> IDL> help,a,b,c
> A BYTE = Array[10, 10]
> B BYTE = Array[10, 5]
> C BYTE = Array[10, 15]
>
> Ciao,
> Paolo

I would go with Paolo's suggestion, unless you absolutely have to join
in left right, instead of up down. In that case, you could try
something like:

c = [[B],[bytarr(10,5)]]
D = [A,C]

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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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