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Re: adding "placeholders" to an array [message #48968 is a reply to message #48967]

Tue, 06 June 2006 15:02

Michael Galloy
Messages: 1114
Registered: April 2006

Senior Member

pimpk24@hotmail.com wrote:
> I was wondering if there is a way to change the dimesions of an
> existing array and to hardwire the new values. It seems that the rebin
> and reform functions only add values by interpolation and nearest
> sampling. I want to predeterming what the new value will be
>
> e.g. Given a random vector, how can I add dimensions of all zero values
>
> 1 4 6 7 8 354 42345
> 0 0 0 0 0 0 0
> 0 0 0 0 0 0 0
>
>
> thanks in advance
>

You can't change the size of the array without recreating and copying:

IDL> v = [1L, 4L, 6L, 7L, 8L, 354L, 42345L]
IDL> newv = lonarr(7, 3)
IDL> newv[0, 0] = reform(v, 7, 1)
IDL> print, newv
1 4 6 7 8 354
42345
0 0 0 0 0 0
0
0 0 0 0 0 0
0

Mike
--
www.michaelgalloy.com

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[Message index]

		Re: adding "placeholders" to an array By: David Fanning on Tue, 06 June 2006 15:12
		Re: adding "placeholders" to an array By: Michael Galloy on Tue, 06 June 2006 15:02
		Re: adding "placeholders" to an array By: Paul Van Delst[1] on Tue, 06 June 2006 14:53

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